Masking for insulating glass units, monolithic panes, and other substrates
CA 2458760 A1 · Owner: Trpkovski, Paul · Inventors: Trpkovski, Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides improved masking for monolithic panes insulating glass , units, and other substrates. In some embodiments the protective covering , comprises a plurality of strips of masking material. In some embodiments the , protective covering (which may take the form of a single masking sheet or of multiple masking strips) is sized, shaped and positioned such that an , oversized masked portion of a pane surface has a lesser area than the pane surface itself but has a greater than an exposed central region of the pane surface that remains exposed (i.e. is left uncovered) by a frame when the pane is mounted in the frame. In some embodiments a pane is mounted to a , frame such …
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 August 27, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 27, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 2024.
- 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.