Lamp assembly, heater and base
CA 2226538 A1 · Owner: Osram Sylvania Inc. · Inventors: Hall, Rolland B.; Hardenstine, Scott M.; Dudek, Peter A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lamp assembly is provided which includes a lamp a lamp base, attached to the lamp, and a lamp heater. One or more abutment regions of the lamp and the lamp base mate with one another to provide axial and rotational orientation of the lamp relative to the lamp base. The lamp heater conforms to the surface of the lamp and may be bonded thereto by an adhesive. The lamp heater may include a heater element and thermistor adjacent to a surface of the lamp. The lamp lamp heater and, thermistor are connected to a connector. A thermal breaker is connected to the heater. The thermal breaker provides a safety device to control maximum lamp temperature. The thermistor controls the operating …
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 January 8, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 8, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 8, 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.