Ammonia applicator blade
CA 1110500 A · Owner: Ausherman Manufacturing Co. Inc. · Inventors: Stump, Lee K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A point for welded removable attachment to a mild steel blade shank and tube to constitute an ammonia applicator blade, such point being cast of high chrome iron to be extremely wear resistant. The point tapers forwardly in width and its generally horizontal bottom slopes downwardly in its forward portion so that outwardly projecting lips along its lower edges not only laterally open and break up soil for swifter ammonia absorption but also tend to pull the blade down into the soil. The point has a V-shaped opening for accommodating the blade shank to which it is butt welded.
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 October 13, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 13, 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.