Submersible grappling device
CA 2061698 A1 · Owner: Fletcher, Gerald L. · Inventors: Fletcher, Gerald L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A submersible grappling system is designed for retrieving objects, such as, golf balls from the bottom or floor of a body of water and is made up of a tubular housing, a bladder at one end of the housing finger-like, retrieval elements at the opposite end of the housing and a gear column which serves to interconnect the bladder and retrieval elements so that when the gear column is driven in one direction, it will cause the bladder to be compressed within the upper end of the housing while forcing the retrieval elements downwardly and outwardly into surrounding relation to an object to be retrieved and, when the gear column is driven in the opposite direction will cause the bladder to be …
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 February 24, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 24, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 2014.
- 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.