Reinforced concrete catch basin cover and lid
CA 1046819 A · Owner: Carroll, Glenn T. · Inventors: Carroll, Glenn T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reinforced concrete catch basin cover and lid takes the form of a concrete slab-like body wherein the reinforcement has spaced parallel front and back sections with interconnecting members and a ring disposed centrally thereof defining the access opening in the cover. The front and back reinforcement sections and some of the interconnecting members defining a shape substantially the same as that of the reinforced concrete catch basin cover with a cast concrete body enveloping the reinforcement sections and members. This invention is distinguishable from other inventions by reason of the arrangement of the front and back reinforcing sections and their interconnecting members which …
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 January 23, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 1996.
- 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.