- Joined
- Feb 15, 2017
- Messages
- 935
It does have a M on the handle could be mann or mexico.
True Temper's patent for the eye ridges was Patent Number 3090653, filed 7/2/59 and granted 5/21/63. (Details at bottom.) The duration of this patent would be until May 1980, according to information below.
For patents filed prior to June 8, 1995, the term of patent is either 20 years from the earliest filing date as above (excluding provisional applications) or 17 years from the issue date, whichever is longer.
Term of patent - Wikipedia
https://en.wikipedia.org/wiki/Term_of_patent
True Temper's patent information:
https://www.google.com/patents/US3090653
There is some rather fanciful cross wedging depicted in those patent drawings!True Temper's patent for the eye ridges was Patent Number 3090653, filed 7/2/59 and granted 5/21/63. (Details at bottom.) The duration of this patent would be until May 1980, according to information below.
For patents filed prior to June 8, 1995, the term of patent is either 20 years from the earliest filing date as above (excluding provisional applications) or 17 years from the issue date, whichever is longer.
Term of patent - Wikipedia
https://en.wikipedia.org/wiki/Term_of_patent
True Temper's patent information:
https://www.google.com/patents/US3090653
A lot going on with that patent. Not sure just putting ribs in the eye would be patent infringement.
I certainly haven't. Nor do the NOS or original handle versions of Wood Slashers that have been featured/exhibited on here have anything more than a single wedge.Have any of you seen any original crosswedging like that in the wild?