Method of forming truck cab frames
CA 1252619 A · Owner: General Motors Corporation · Inventors: Jelcin, Michael J.; Belleau, Gordon F.; Verga, Charles F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the disclosure To form a pair of truck cab frames, a pair of mandrels are provided in base-to-base relationship filamentary material is wound about the mandrels to form four corner pillars, four roof rails and two roof cross-members of each frame, and the corner pillars of one frame are separated from the corner pillars of the other frame adjacent the bases of the mandrels.
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 April 18, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 18, 2006.
- 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.