Expired, full termArchiveSolo inventor
Scotching arrangement, especially for the scotching of rolling loads on railway trucks
US 2,652,003 A · Inventors: RENE PORTE
Overview
The published document from the USPTO: abstract, claims, description and drawings. Open it full size
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Listed from its USPTO record in Patent Yard's full-term archive. Its claims, description and drawings are in the USPTO PDF and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 15, 1953. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by September 15, 1970.
- We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledApril 27, 1949
GrantedSeptember 15, 1953
Term endedSeptember 15, 1970
Application number—
Classification (CPC)B60T3/00 +1 more
Length7 pages
Timeline
Timeline From USPTO dates
Sources & verification
Official USPTO records
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Everything on this page comes from the USPTO record linked above.