Carrier rack drive
CA 2004580 C · Owner: Longrod, Scott J. · Inventors: Longrod, Scott J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved carriage moving mechanism on a frame for a typewriter or printer. (a) The carriage movable mounted on a guide rail for longitudinal movement of the frame; (b) The traveling motor is fixedly mounted on the carriage including a pinion attached to a rotary shaft of the motor;, (c) The rack is attached to the frame extending longitudinally substantially in parallel to the guide rail;, (d) The rack being rigid longitudinally thereof and being flexible in a flex direction perpendicular to the longitudinal direction the rack, including a tooth side adapted to engage with said pinion, the surface of the rack including the line of teeth and its surface opposite the pinion being …
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 December 5, 1989 and granted March 11, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 5, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 5, 2011.
- 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.