Pen-scraper
CA 2034603 A1 · Owner: Werner, G. John · Inventors: Werner, G. John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
FORM 24 page 1 of 5, (ss. 21,31,34 and 142) ABSTRACT, In this invention a scraper tip is mounted in a pen housing. This allows the user to scrape. even the toughest coatings by securely holding the pen barrel and applying force down along it's length onto the scraping edge. The assembly is compact and appears to be a disposable pen until the cap is removed.
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 January 21, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 21, 2013.
- 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.