Lubricant composition
CA 2437862 A1 · Owner: Germaine, Gilbert Robert Bernard · Inventors: Germaine, Gilbert Robert Bernard; Wedlock, David John; Daniel, Mervyn Frank
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lubricant composition comprising a base oil and one or more additives wherein the lubricant composition has a kinematic viscosity at 100 ~C of more than 5.6 cSt, a cold cranking simulated dynamic viscosity at -35 ~C according to ASTM D 5293 of less than 62 centiPoise (cP) and a mini rotary viscosity test value of less than 60000 cP according to ASTM d 4684 wherein the base , oil has been obtained from a waxy paraffinic Fischer-Tropsch synthesized hydrocarbons.
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 February 8, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 8, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 2024.
- 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.