Portable bridge
CA 1077205 A · Owner: Hamilton Construction Company · Inventors: Peckham, William T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A portable bridge structure for carrying trucks and other large vehicles is described including two longitudinal bridge sections which are transported separately to the bridge site and are fastened together after installation by means of pivotable diaphragm members. The pivotable diaphragm members are pivotally attached to one bridge section and after pivoting into position, are bolted to bracing flanges on both sections to fixedly secure the sections together. Each bridge section includes at least one longitudinal support member and a plurality of cross members extending across the top of such support member to provide a support frame of a generally T-shaped cross section. The …
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 13, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 13, 1997.
- 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.