Light cover
CA 2300669 C · Owner: St. Nick Co. · Inventors: Sealy, Ira A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A light coven is provided for direct attachment to a light bulb of a decorative light. The light cover is made of a flexible material which is dyed to a desired color. The light cover because of its flexible material is adaptable for use with different sized light bulbs. The light cover does not substantially change the diffusion of the light projected but achieves a, desired color change. In a first embodiment the light cover is cylindrical, in shape with an integral cone-shaped cap. In a second embodiment the, cap is eliminated anal the light cover is simply cylindrical in shape. The invention in one aspect is a light cover. In another aspect the invention is , a, light cover in …
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 March 17, 2000 and granted August 7, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 17, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 17, 2022.
- 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.