Hand operated mudless drywall tape applicator
CA 2239059 C · Owner: Denkins, Jeffrey L. · Inventors: Denkins, Jeffrey L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A tape applicator (10) applies adhesive-backed drywall tape (36) along both flat joints and corner joints. The applicator (10) has a common tape dispenser (2) to which a flat joint header (3) and a corner joint header (4) can be removably attached. The dispenser (2) includes a tape guide (60) located near a tape outlet (34) for the dispenser as well as a tape brake (69). The flat joint header (3) has a cylindrical application roller (38) with a resilient surface. The corner header includes a creaser wheel (214) that creases the tape into a corner and a guide roller (212) that guides the tape from the dispenser outlet (34) to the creaser wheel (214). A corner roller (5) having a …
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 22, 1996 and granted December 4, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 22, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 22, 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.