Apparatus for dispensing measured lengths of tubular films onto an armature
CA 2129349 C · Owner: Boker, Samuel J. · Inventors: Boker, Samuel J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for dispensing measured lengths of a sleeve material upon an armature (16) especially adapted for dispensing a plastic cover (28) upon a toilet seat includes a source (38) of sleeve material fed onto the armature (16) and collected upon a take-up reel (44). The cover (28) is provided with a uniform series of marks (50) along its length which are sensed and counted to control the operation of a motor drive (58) which directs the sleeve material to and from the armature (16). Timer circuits (72,84) are employed to cause motor cut-off if the required length of sleeve is not dispensed within a given length of time and to inhibit motor start for a fixed period after a dispensation. …
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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 February 10, 1993 and granted December 28, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 10, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 10, 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.