Metallo-organic precursors to titanium nitride
CA 2087549 A1 · Owner: Lewkebandara, Tilak Suren · Inventors: Proscia, James William; Sheridan, Philip Hamilton; Winter, Charles Hartger
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Consommation et Consumer and, Affaires commerciales Canada Corporate Affairs Canada Bureau des brevets Patent Office, Ottawa Canada, K1A0C9 (21) (A1) 2,087,549, (22) 1993/01/19 (43) 1993/07/25, (51) INTL.CL.5 C07F-007/28; C23C-016/18; B05D-007/24 (19)(CA) APPLICATION FOR CANADIAN PATENT (12) (54) Metallo-Organic Precursors to Titanium Nitride (72) Winter, Charles H. - U.S.A. ;, Lewkebandara Tilak S. - U.S.A. ;, Proscia, James W. - U.S.A. ; Sheridan, Philip H. - U.S.A. ;, (73) Ford Motor Company of Canada Limited - Canada ;, (30) (US) 07,825,235 1992/01/24 (57) 55 Claims, Notice: This application is as filed and may therefore contain an incomplete specification. CCA3254(10-92)41 …
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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 January 19, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 19, 2015.
- 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.