Fastener delivery tube
CA 2093375 C · Owner: Edwards, Cyril Kenneth · Inventors: Edwards, Cyril Kenneth
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fastener delivery tube (21) incorporates an internal guide (22) -such as a continuous sleeve lining, flexible, or resiliently deformable spring strips (34,37,38) or, re-circulating balls (61) - forming a longitudinally movable constriction inhibiting, fastener free-fall through the tube and preserving fastener orientation by , maintaining, fastener (25) contact with a driving plunger (28) in its passage there-through and upon, exit there-from into contact with a workpiece.
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 April 5, 1993 and granted November 19, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 5, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 5, 2015.
- 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.