Visual tire cap pressure gauge
CA 2269787 C · Owner: Cummings, Craig · Inventors: Cummings, Craig
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A visual tire cap pressure gauge (10) which comprises a cap member (12). A structure within the cap member (12) is for securing the cap member to a valve stem (16) on a tire (18) in a motor vehicle (20). A lens (22) is mounted in a top end of the cap member (12). An assembly (24) within the cap is for visually indicating when air pressure within the tire (18) drops below a set point, so as to enable a person at a glance to tell if the tire needs more air.
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 October 28, 1996 and granted July 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 28, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 28, 2018.
- 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.