Apparatus for demolishing a bridge structure
CA 2358658 A1 · Owner: L.M. Sessler Excavating And Wrecking, Inc. · Inventors: Sessler, Laverne M. Jr.; Sessler, Craig L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An overhang bracket for preventing the discharge of debris from a structure which, contains a bracket deck integrally connected to a bracket frame. The bracket deck and bracket, frame preferably each has a length of from about 4 to about 15 feet. The bracket deck is, preferably substantially L-shaped with a horizontal and vertical surface disposed vis-a-vis each, other at an angle of from about 60 to about 150 degrees; and it has a load capacity of from about, 50 to about 1,000 pounds. The bracket frame contains at least two triangular braces. The bracket, deck and/or the bracket frame contains an orifice which extends inwardly.
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 October 11, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 11, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 11, 2023.
- 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.