Ratchet wrench
CA 2336248 A1 · Owner: Lynch, Joseph A. · Inventors: Lynch, Joseph A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ratchet wrench includes a handle (12) a housing (13) attached to said , handle a ratchet gear (26) mounted for rotation in said housing the ratchet , gear having an axis of rotation extending through the housing and means (36) , connected to the ratchet gear for turning a threaded fastener. A pawl (17) is mounted on the handle about a pivot axis (18) that extends through the handle the pawl pivoting among a first position in which the pawl permits unrestricted rotation of the ratchet gear a second position in which the pawl , engages the ratchet gear to prevent rotation of the ratchet gear in one direction, but allows rotation of the ratchet gear in the opposite direction and a third …
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 June 24, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 24, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 24, 2021.
- 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.