Expired, full termArchiveSolo inventor
Impregnated fibrous materials and process of making the same
US 3,533,902 A · Inventors: HOCH RICHARD C
Overview
This document has no drawings.
Claude can sketch it from the patent text.
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 October 13, 1970. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by October 13, 1987.
- We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledMay 29, 1969
GrantedOctober 13, 1970
Term endedOctober 13, 1987
Application number—
Classification (CPC)D04H1/00 +2 more
Length3 pages
Sources & verification
Official USPTO records
Cross-check elsewhere
Everything on this page comes from the USPTO record linked above.