Electric powered dive reel
CA 2172639 C · Owner: Adams, Dana-Mark · Inventors: Adams, Dana-Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an electically powered winding and reeling mechanism for underwater use by divers. It consists of a drive shaft assembly having connected to one end thereof a spool with a cord wound thereon. The shaft assembly is sealingly pressed into one smaller end of a main housing. A gear reduction unit with attached motor, a 3-position switch (forward,neutral reverse) and, batteries are positioned as a unit into a larger opposite end of the main housing so that the drive shaft of the assembly mates with the gear reduction unit. The larger end of the housing is sealed by a threaded end cap and o-ring seal. The gear reduction unit is driven by the motor, power to which is …
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 March 26, 1996 and granted January 28, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 26, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 26, 2018.
- 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.