Bird dispersing system
CA 2269958 A1 · Owner: Joseph, John Barthell Jr. · Inventors: Joseph, John Barthell Jr.; Schoenheiter, Q. Martin Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for dispersing birds away from airfields includes a central computer unit and a base antenna system, a hand held transmitter, and a plurality of remotely disposed, positionable gas cannons each, cannon is connected to a single control unit . Each gas cannon produces a high decibel explosion by feeding a combustible gas from a pressurized storage tank housed within the cannon control unit. In addition, the system includes an endless recording of chaotic noises, such as barking dogs, sirens breaking, glass, etc. for broadcasting. The noise broadcasts are via all weather speakers remotely disposed along with the gas cannons. The noises, broadcast in 15-20 second bursts, are made …
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 April 26, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 26, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 26, 2021.
- 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.