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Dear Mr. Knapp,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located Patent Case Files, 1/1/1836 - 12/31/1978 in the Records of the Patent and Trademark Office (Record Group 241) that include case files numbered 1 - 4,130,933. For more information about these records, please contact the National Archives at Kansas City (RM-KC) at firstname.lastname@example.org.
Due to the COVID-19 pandemic and pursuant to guidance received from the Office of Management and Budget (OMB), NARA has adjusted its normal operations to balance the need of completing its mission-critical work while also adhering to the recommended social distancing for the safety of NARA staff. As a result of this re-prioritization of activities, you may experience a delay in receiving an initial acknowledgement as well as a substantive response to your reference request from RM-KC. We apologize for this inconvenience and appreciate your understanding and patience.
Please review the National Archives web page on Patent Records for more information.
We hope this is helpful. Best of luck with your research!
Thank you very much, Robert for this information. On Monday, I'll follow up with the Kansas City National Archives site.
I am looking specifically for the TEXT of Burr's April 3, 1817 Patent #2769x Fingers crossed that this is in Kansas City
Thanks for the link for the Patent Drawing. However, I was able to locate a more dramatic one from the National Archives https://catalog.archives.gov/search?q=bridge%20%20Burr&f.oldScope=(descriptions%20or%20online)&f.beginDate=1800-01-01&f.endDate=1820-12-31&SearchType=advanced
I am also looking for Burr's February 14, 1806 patent "improvement in bridges" I have NOT been able to locate a Restored Patent # for it, so do not know if either a drawing or text exists.
Again, thanks for your assistance.
Thank you, Robert for your useful information.
I have written to the National Archives in Kansas City
'By the way, the National Archives has a "Drawn from a certified copy" of the Patent Drawing that is different from the one you gave me a link to