Tape cassette for metering correction tape feed
CA 1316138 C · Owner: Smith Corona Corporation · Inventors: Mueller, Hans W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Case Docket T-324, ABSTRACT OF THE DISCLOSURE tape cassette has a sensing arm pivotably mounted therein biased against a correction tape on a take-up spool for sensing the amount correction tape thereon. A correction tape feed mechanism mounted in a typewriter has a metering post for engaging the sensing arm at varying locations to cause the correction tape feed mechanism to feed the correction tape at substantially equal amounts regardless of the amount of correction tape on the take-up spool.
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
- Granted April 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 13, 2010.
- 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.