Expired, full termArchiveSolo inventor
Candle socket
US 1,520,522 A · Inventors: TIZLEY ARTHUR J
Overview
1 drawing sheet
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 December 23, 1924. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by December 23, 1941.
- We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledJanuary 18, 1923
GrantedDecember 23, 1924
Term endedDecember 23, 1941
Application number—
Classification (CPC)F21S6/001
Length3 pages
Sources & verification
Official USPTO records
Cross-check elsewhere
Everything on this page comes from the USPTO record linked above.