Worm/worm gear transmission
CA 2387678 A1 · Owner: Fleytman, Yakov · Inventors: Fleytman, Yakov
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A worm/worm gear transmission (10, 16) includes an enveloping-type worm gear (16) having less than twenty-four teeth which are generated by an enveloping thread (12). The angle of one revolution of the thread has more than 15 degrees. Different profiles of the worm gear (16) are generated by a modified worm thread (12).
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 15, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 15, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 15, 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.