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10-25-2009, 02:28 PM
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Question on REG US PAT OFF Hammer/Trigger markings
Every 1930's-era revolver in my collection has the REG.U.S.PAT.OFF marking on the back of the hammer and trigger. That includes I, K and N-frames. Some loose humpback hammers in my parts box also have the marking.
Can someone tell me when these markings were first introduced and what the rationale was? I'm not aware of any fundamental changes to the hammer/trigger system in the late '20s that would warrant new notice of a patent registration. But starting to mark parts some 30 years after the basic design was introduced seems a little slow to post a patent protection notice.
I have looked through SCSW and the Neal-Jinks history, but I didn't spot anything addressing these factory markings. If I just missed them, I hope somebody will point me to the proper pages. Thanks for any help anyone can offer.
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David Wilson
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10-25-2009, 07:25 PM
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David, good question...
I wonder if it has something to do with the Spanish copies that were being made..??
When did the "Marcas Registradas" stamping on the frame start?
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Linda
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10-25-2009, 08:18 PM
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I wonder if it happened in the same time period as the patent was issued on the humpback hammer
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10-25-2009, 08:44 PM
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The order to apply that marking was issued in June, 1926.
I think it was just in a period when they had become very interested in protecing the marks and design. The hammer and sear had been changed slightly in 1915 with the advent of the 1905-4th Change, so perhaps the new shape had been patented. It was only about 10 yrs old, so a 1915 patent would still be in effect.
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Lee Jarrett
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10-25-2009, 10:01 PM
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Lee/Steve -- Thank you both. I see that I cannot put off a day longer getting a copy of the Neal/Jinks "handbook for collectors."
Curtis, the HB hammer was introduced in the late '30s. The patent application was made in 1937 and the patent granted in 1939.
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David Wilson
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10-26-2009, 06:29 AM
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Quote:
Originally Posted by handejector
The order to apply that marking was issued in June, 1926.
I think it was just in a period when they had become very interested in protecing the marks and design. The hammer and sear had been changed slightly in 1915 with the advent of the 1905-4th Change, so perhaps the new shape had been patented. It was only about 10 yrs old, so a 1915 patent would still be in effect.
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Hello David, Lee & Other's
Great Interesting Thread here. I Looked at my Regulation Police revolver that shipped in November 1926 and it has a stamping of "Reg. U.S. Pat. Off." on the back side of the Hammer and Trigger with Vibrant case Colors and the fine cross hatch style checkering, so that coincides with forum member stbryson's Response here. Does anyone have a revolver that shipped from a slightly earlier time span that would support these findings ? Just Curious here as to How early we saw this stamping after the Patent was applied for ?. Hammerdown
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10-26-2009, 12:45 PM
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US Veteran SWCA Member Absent Comrade
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And if you notice that the post war transition guns with the pre war style hammer and trigger do not have the patent info on them.
Bill
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10-26-2009, 05:05 PM
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My old .32-20 4th change has that on the back of the hammer. Neat info guys. Thanks for sharing.
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10-26-2009, 05:11 PM
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Our 1937 38-44 has the markings also.
Charlie
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05-28-2017, 04:40 PM
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SCSW, page 493: 1926:Reg. U.S. Pat Off was stamped on hammer and trigger, K and N beginning June. This was not a patent notice on mechanical design, but for color case hardening process. Dropped during WWII production.
Appendix C
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Al
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