These Terms & Conditions ("Terms") govern your access to and use of slipjointhistory.com and its content (the "Site"), operated by PhotoOpAI, Inc. ("we," "us," or "our"). By accessing or using the Site, you agree to be bound by these Terms. If you do not agree, please do not use the Site.
The Site is a free, non-commercial reference work about historical American pocket-knife manufacturers. Its entries are compiled from public-domain documents (period manufacturer and wholesale catalogs, price lists, trade journals, patent and trademark records) and from clearly-marked secondary sources. We assemble, verify, and cite this material with care, and each entry indicates the confidence we place in it, but the Site is provided for general historical and educational reference only.
Historical records are incomplete and sometimes inconsistent, optical-character-recognition of old catalogs can introduce errors, and research on the Site may be assisted by automated or artificial-intelligence tools. We therefore make no guarantee that any date, price, specification, attribution, or other fact on the Site is complete, current, or free from error. Information on the Site is provided "as is," and you are responsible for independently verifying anything before you rely or act on it.
The Site's original text, selection, arrangement, compilation, and presentation are © 2026 PhotoOpAI, Inc., all rights reserved. The underlying source documents we cite are, where indicated, in the public domain and are not claimed by us. Brand, product, and company names — including but not limited to Case, Tested XX, Remington, Winchester, Ka-Bar, Keen Kutter, Cattaraugus, Camillus, Schrade, and others — are the trademarks or registered trademarks of their respective owners. They are used on the Site solely for identification, description, and historical reference (nominative use). Their use does not imply any affiliation with, sponsorship by, or endorsement from any current rights-holder.
We grant you a personal, non-exclusive, non-transferable, revocable license to access and view the Site for your own private research and educational use. You may quote or cite reasonable excerpts with attribution to "The American Pocket Knife — A Catalog Reference."
You agree not to: (a) scrape, harvest, or systematically copy the Site or reproduce it in bulk; (b) republish, sell, or commercially exploit the Site's compiled content without our written permission; (c) use the Site or its content in a way that infringes any third party's rights or violates any law; (d) misrepresent the Site's content, or remove or alter any attribution or notice; or (e) interfere with the Site's operation or security.
The Site links to third-party archives and sources (for example, the Internet Archive, HathiTrust, the U.S. Patent & Trademark Office, and various museums and collector resources). We do not control and are not responsible for the content, availability, or practices of those third parties, and a link is not an endorsement.
THE SITE AND ALL CONTENT ARE PROVIDED "AS IS" AND "AS AVAILABLE," WITHOUT WARRANTIES OF ANY KIND, WHETHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, ACCURACY, AND NON-INFRINGEMENT. WE DO NOT WARRANT THAT THE SITE WILL BE UNINTERRUPTED, ERROR-FREE, OR SECURE.
TO THE FULLEST EXTENT PERMITTED BY LAW, PHOTOOPAI, INC. AND ITS OFFICERS, EMPLOYEES, AND AGENTS WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, OR FOR ANY LOSS ARISING FROM YOUR USE OF OR RELIANCE ON THE SITE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. OUR TOTAL AGGREGATE LIABILITY FOR ANY CLAIM RELATING TO THE SITE WILL NOT EXCEED ONE HUNDRED U.S. DOLLARS (US $100).
You agree to indemnify and hold harmless PhotoOpAI, Inc. from any claims, damages, liabilities, and expenses (including reasonable attorneys' fees) arising out of your use of the Site or your breach of these Terms.
We may modify, suspend, or discontinue any part of the Site, and may update these Terms, at any time. Changes take effect when posted, and the "Last updated" date above will reflect them. Your continued use of the Site after a change constitutes acceptance of the revised Terms.
These Terms are governed by the laws of the State of Texas, without regard to its conflict-of-laws rules. Any dispute arising out of or relating to the Site or these Terms will be resolved by binding arbitration administered under the rules of a recognized arbitration provider, seated in Travis County, Texas, on an individual basis; you and we waive any right to a jury trial or to participate in a class action. Nothing in this section prevents either party from seeking injunctive relief in a court of competent jurisdiction to protect its intellectual property.
If any provision of these Terms is held unenforceable, the remaining provisions will remain in full force. These Terms are the entire agreement between you and us regarding the Site and supersede any prior understandings. Our failure to enforce any provision is not a waiver.
Questions about these Terms may be sent to info@photoop.com, or by mail to PhotoOpAI, Inc., 13359 North Highway 183, Suite 406-505, Austin, Texas 78750.