Expired, full termArchiveSolo inventor
Process of making paper from straw and product
US 1,634,603 A · Inventors: WOOD CHARLES D
Overview
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Read the whole patent
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 July 5, 1927. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by July 5, 1944.
- We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJanuary 12, 1926
GrantedJuly 5, 1927
Term endedJuly 5, 1944
Application number—
Classification (CPC)D21H17/64 +1 more
Length2 pages
Sources & verification
Official USPTO records
Cross-check elsewhere
Everything on this page comes from the USPTO record linked above.