Single-based electric lamp base structure with connecting lead strain relief
CA 2131114 C · Owner: Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh · Inventors: Behr, Gerhard; Steiner, Hermann; Helbig, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
To provide a strain relief in a base for an electric lamp adapted for connection to an external electrical energy source by at least one connection cable (6a, 6b) extending through and into the base, the base (2) is formed with a strain relief arrangement which includes a resilient sleeve (11) having an inner wall surrounding the at least one connection cable and within the, base bottom portion (9, 9') a sleeve reception structure (9a), positioned inwardly of the bottom of the base which includes a, sleeve reception bore (10a 10b) receiving and surrounding the, resilient sleeve (11a 11b) and exerting circumferentially, uniformly radially inwardly directed forces on the resilient sleeve. …
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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 August 30, 1994 and granted February 25, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 30, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 30, 2016.
- 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.