Patent family
US 2175501
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 (2)
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
- Dec 7, 1938
- Projected expiration
- Dec 7, 1958expired
- Application number
- US244442A
Other priority claims (1)
- US2175501AOn dossierfiled Dec 7, 1938
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.