Television programming apparatus
CA 2097904 A1 · Owner: Wilen, Richard · Inventors: Wilen, Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multi-sheet overlay is placed over a basic television programs listing. Two of the sheets of the overlay are removably adhered together one sheet being a, transparent sheet and the other being a non-transparent sheet. The non-transparent sheet is selectively kiss-cut so that select section, of the non-transparent sheet may be removed to expose corresponding sections of the transparent sheet and reveal selected sections of the television programs listing. Data is printed on a sheet of the overlay relating to a television system the differs from the basic television listing. By selectively removing kiss-cut sections on the overlay, multiple bits of data may be combined to provide 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 June 7, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 7, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 7, 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.