Light weight crossbar
CA 1330818 C · Owner: Leone, David A. · Inventors: Leone, David A.; Buxton, Clifford A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A crossbar spanning the poles of a multiple pole circuit breaker. The crossbar is formed from a structural member such as beam having an I-shaped cross-section wherein an, insulating material such as plastic is molded to the beam. The shape of the structural member is such that it provides a high strength to weight ratio. The plastic is molded such that it includes means for inhibiting arcing between the poles of the circuit breaker.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 19, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 19, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.