Molded printed circuit card frame
CA 1078527 A · Owner: Singer Company (The) · Inventors: Kopp, Frank A. (Jr.); Mintz, Howard J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A printed circuit card frame of a moldable flowable plastic which plastic is non-hygroscopic high, temperature resistant, non-toxic and non-flammable and which has a flexural strength of about 27,000 lbs./in2 a tensile strength of about 18,000 lbs./in2 and a coefficient of linear thermal expansion of about 2.41x10-5 cm/cm/°C. The card frame is molded to include air passages and connector pin holes and reinforced with at least one rib and a plurality of metallic compression inserts.
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 27, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 27, 1997.
- 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.