Electrostatic coating of moldings with thermoplastic and crosslinkable copolyamide hot-melt adhesives
CA 2351929 A1 · Owner: Waterkamp, Paul-Ludwig · Inventors: Losensky, Hans-Willi; Simon, Ulrich; Waterkamp, Paul-Ludwig
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a process which comprises coating a nonconducting molding with a thermoplastic or crosslinkable copolyamide hot-melt adhesive, wherein the coating takes place electrostatically. The coating may be applied by an electrostatic gun and a fine powder having a particle size of 1 to 200 µm of the hot-melt adhesive may be used. Further the, powder may be applied locally (e.g. in recesses) in a large amount.
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 June 29, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 29, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 29, 2023.
- 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.