Inorganic fiber composition
CA 1338340 C · Owner: Olds, Leonard Elmo · Inventors: Kielmeyer, William Henry; Olds, Leonard Elmo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Inorganic fibers which have a silicon extraction of greater than about 0.02 wt% Si/day in physiological saline solutions. The fiber contains SiO2, MgO CaO, and at least one of, Al2O3, ZrO2, TiO2 B2O3, iron oxides, or mixtures, thereof. Also disclosed are inorganic fibers which have diameters of less than 3.5 microns and which pass the ASTM E-119 two hour fire test when processed into a fiber blanket having a bulk density in the range of about 1.5 to 3 pcf.
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 May 21, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 21, 2013.
- 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.