Cross-arm mounting bracket for poles
CA 2033092 A1 · Owner: Stubbersfield, Edgar Malcolm · Inventors: Stubbersfield, Edgar Malcolm
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The cross-arms (10) for electricity or telephone lines (13) are mounted on poles (11) by mounting brackets (12) so that the upper faces (17, 18) of the cross-arms (10) are inclined downwardly at approximately 45° to the horizontal. The lines (13) are carried by insulators (14) whose bases (15) are bolted, screwed or clamped to the cross-arm (10). The cross-arms (10) are supported in substantially V-shaped cradles mounted on or formed, integrally with base plates fixed to the poles (11).
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
- Filed May 18, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 18, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 18, 2012.
- 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.