Switch for portable light source
CA 2001310 C · Owner: The Brinkmann Corporation · Inventors: Reeves, W. Clay; Rohrs, Donald L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A switch for a portable light source such as a flashlight which has a housing for carrying one or more batteries and for supporting a lamp bulb. The switch includes a switch body securable to the housing and actuator means axially moveable relative to the switch body for electrically coupling and uncoupling an electrode of the batteries to one of the terminals of the lamp bulb to thereby switch the lamp bulb on and off. The actuator means is also rotatably moveable relative to the switch body for preventing axial movement of the actuator means and thereby locking the flashlight in the on state.
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 24, 1989 and granted January 8, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 24, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 24, 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.