Sighting in apparatus for rifle mounted telescope gunsights
CA 1107544 A · Owner: Steffan, Walter J. · Inventors: Steffan, Walter J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordNo Claude kit for weapons
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Abstract From the Canadian patent
A support rod is adjustably secured to a gauge body which is counterweighted at its lower end such that it will hang upright in a pendulum arrangement when the rod is inserted in the muzzle end of a gun barrel. A vertically adjustable sighting target is mounted on the sighting gauge. A holder attachment having radially adjustable chuck-type jaws and arranged to support a lens is adapted to be mounted on the front of a telescope gunsight. The lens brings the sighting target into focus through the telescope. The holder attachment supports a first removable insert at its front end which has the lens therein and this attachment is arranged to support a second insert on the other end having a …
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 August 25, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 1998.
- 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.