Expired, full termArchiveSolo inventor
Journal box lid assembly
US 2,977,159 A · Inventors: SHAFER JAMES A et al.
Overview
4 drawing sheets
Every sheet is in the USPTO PDF.
Open the USPTO PDFRead 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 March 28, 1961. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by March 28, 1978.
- We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledDecember 31, 1956
GrantedMarch 28, 1961
Term endedMarch 28, 1978
Application number—
Classification (CPC)F16J13/18
Length8 pages
Sources & verification
Official USPTO records
Cross-check elsewhere
Everything on this page comes from the USPTO record linked above.