High load bearing for bridges and similar structures
CA 1100714 A · Owner: Elastometal Limited · Inventors: Fyfe, Edward R.; Watson, Stewart C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A high load bearing for bridges and other structures comprising upper and lower plates and a load bearing elastomer pad between them. The pad has a concave periphery and the, bearing is provided with means preventing shearing between the upper and lower plates but permitting rotational movement between them. Means are provided which mechanically abut the elastomer pad to limit or prevent lateral movement of the upper and lower surfaces of the elastomer pad without preventing bulging of its periphery.
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 May 12, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 1998.
- 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.