Patent family
US 4387297
Continuation, divisional, and parent applications sharing a priority claim with this patent. Most asserted patents are continuations — the sibling list is the assertion surface a defendant has to plan against. Sourced from Google Patents, cached for 30 days.
Patent family (21)
Continuations, divisionals, and parent applications sharing a priority claim with this patent. Most asserted patents are continuations — siblings expand the assertion surface a defendant has to plan against.
- Earliest priority
- Feb 29, 1980
- Projected expiration
- Feb 29, 2000expired
- Application number
- US06/125,768
Other priority claims (20)
- US4387297B1On dossierfiled Feb 29, 1980
- GB2070832B ↗filed Feb 26, 1981
- CA1154872A ↗filed Feb 27, 1981
- FR2477302B1 ↗filed Feb 27, 1981
- JPS56140467A ↗filed Feb 28, 1981
- IT1138713B ↗filed Mar 2, 1981
- DE3153253C2 ↗filed Mar 2, 1981
- DE3107922C2 ↗filed Mar 2, 1981
- US4496831A ↗filed Nov 16, 1981
- CA1173103A ↗filed Jul 6, 1983
- US4593186A ↗filed Oct 20, 1983
- GB2134679B ↗filed Oct 27, 1983
- SG75287G ↗filed Sep 19, 1987
- HK52588A ↗filed Jul 14, 1988
- JPH02288988A ↗filed Mar 22, 1990
- JPH02282880A ↗filed Mar 22, 1990
- JPH02282879A ↗filed Mar 22, 1990
- JPH02288987A ↗filed Mar 22, 1990
- JPH02288986A ↗filed Mar 22, 1990
- JPH0380386A ↗filed Jul 31, 1990
Sourced from Google Patents · Cached for 30 days · Projected expiration is 20 years past earliest priority and does not reflect terminal disclaimers, patent term adjustment, or extension.