High intensity discharge light fixture
CA 1253475 A · Owner: Keene Corporation · Inventors: Sangiamo, Richard; Russello, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A high intensity discharge light fixture is provided wherein the conventional gaskets are replaced by joints which prevent water from entering the fixture but permit free air flow. The joints are formed by components at, least one of which terminates in a U shaped section and the other of which interdigitates with the U-shaped section. The leg of the U-shaped section directed toward the fixture interior is longer than the leg directed away from the fixture thereby providing a water barrier.
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
- Granted May 2, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 2, 2006.
- 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.