Expired, full termArchiveSolo inventor
Industrial use of exhaust-gases of internal-combustion engines
US 1,364,656 A · Inventors: ETIENNE TISSIER LOUIS
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 January 4, 1921. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by January 4, 1938.
- We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJanuary 19, 1918
GrantedJanuary 4, 1921
Term endedJanuary 4, 1938
Application number—
Classification (CPC)F27D17/17
Length5 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.