Patent Yard Sign in
Expired, full termArchiveSolo inventor

Ratchet wheel device for a balance wheel clock

US 3,620,005 A · Inventors: GANTER WOLFGANG et al.

USPTO PDF

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 November 16, 1971. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by November 16, 1988.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledOctober 2, 1968
GrantedNovember 16, 1971
Term endedNovember 16, 1988
Application number—
Classification (CPC)G04B11/04
Length3 pages

Timeline

Timeline From USPTO dates

1969197119731975197719791981198319851987Application filedOct 2, 1968Patent grantedNov 16, 1971Term endedNov 16, 1988

Sources & verification