Gun port assembly with pivotable closure
CA 1294471 C · Owner: Armored Transport, Inc · Inventors: Miller, Robert L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
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Abstract From the Canadian patent
A gun port assembly includes: a) an armored closure, b) structure forming a main port c) and a rocker arm pivotably carried by such structure to carry the closure into closing and opening relation to the port in response to pivoting of the arm d) and over-center spring mechanism biasing the arm to have a first stable position in which the closure extends in closing relation to the port, and a second stable position in which the closure is spaced away from the port and the port is, open. -1-
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.
Why it's free to use
- Granted January 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 2009.
- 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.