Maraging steel
CA 1323548 C · Owner: Coffee, Louis Gene · Inventors: Smith, Darrell Franklin Jr.; Coffee, Louis Gene
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PC-2231/, Abstract of the Disclosure An iron-nickel-molybdenum-titanium maraging steel of special composition and which is characterized by high KIC fracture toughness valves in large cross-sections, as well as other desired mechanical properties. The steel is preferably aged at temperatures of at least about 950°F.
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 26, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 26, 2010.
- 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.