Top load ratchet wrench
CA 2394744 A1 · Owner: Hand Tool Design Corporation · Inventors: Chaconas, Peter Constantine
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ratchet wrench (10) having the opening (20 22) in the head (14) formed from , the top with the pawl (30) being disposed adjacent to the gear (24) within the opening. A retaining plate (48) is disposed over the gear and pawl in the opening in the head. An aperture (56) is formed in the cover plate aligned with a recess (32) in the top of the pawl. A reversing lever (40) with an offset tang is received in the aperture and engages the recess in the pawl. Alternate embodiments of the engagement of reversing lever with the pawl are disclosed. A quick release (Figs. 20-22) for sockets (76) attached to the wrench is disclosed.
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 October 10, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 10, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2022.
- 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.