Method and apparatus for pull away prevention
CA 2232606 A1 · Owner: Hale, David L. · Inventors: Hale, David L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Devices and methods for preventing pull away or drive away incidents. The preferred devices can be retrofitted to critical gas pipes on fuel trucks or gas tanker trucks. A version of my invention can be readily employed with conventional automobiles. Through my system a vehicle engine cannot start or continue to run until a proper disconnection is made from a fueling or refueling source. The preferred protection device comprises a rigid frame having a base portion, connected to a gas pipe with spaced apart clamps. An elongated arm pivotally extending from the frame terminates in a blocking plate. The blocking plate can be user-deflected to either block access to the gas connection or to …
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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 March 19, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 19, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 2020.
- 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.