Retractable truck cover system
CA 2051941 A1 · Owner: Seniuk, Tim · Inventors: Seniuk, Tim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A longitudinally retractable cover system for truck and trailer boxes has travel blocks mounted within a tube containing a rotatable threaded rod. Cover bearing hoops are attached to brackets mounted on the travel blocks. The rearmost hoop is supported on a drive block the rest on, slave blocks. The travel blocks may have wheels or rollers to aid smooth travel. The drive block may itself be threaded or have paired abutting threaded drive blocks. The hoops and cover are retractable under a front housing. When a doghouse is present, angled and level support rods raise the hoops on pulley wheels to clear the doghouse. The cover is a series of sections extending between hoops. Grommet bearing …
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 September 20, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 20, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 20, 2013.
- 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.