Expired, full termArchiveSolo inventor
Template switch arrangement for use in connection with multi-operation copying machines
US 2,920,519 A · Inventors: FRIEDRICH HUGGLER
Overview
The published document from the USPTO: abstract, claims, description and drawings. Open it full size
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 January 12, 1960. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by January 12, 1977.
- We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledNovember 22, 1955
GrantedJanuary 12, 1960
Term endedJanuary 12, 1977
Application number—
Classification (CPC)B23Q35/18 +2 more
Length7 pages
Timeline
Timeline From USPTO dates
Sources & verification
Official USPTO records
Cross-check elsewhere
Everything on this page comes from the USPTO record linked above.