Composition for coating glass containing an accelerant
CA 2104591 C · Owner: Elf Atochem North America, Inc. · Inventors: Florczak, Glenn P.; Dirkx, Ryan R.; Russo, David A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition for coating glass by chemical-vapor deposition comprises a mixture of a tin oxide precursor monobutyltin trichloride, a silicon dioxide precursor tetraethylorthosilicate and an , accelerant such as triethyl phosphite; the composition is gaseous below 200 °C, and permits coating glass having a temperature from 450 to 650 °C at deposition rates higher than 350 .ANG./ sec. The layer of material deposited can be combined with other layers to produce an article with specific properties such as controlled emissivity, refractive index abrasion resistance, or appearance.
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 December 21, 1992 and granted March 14, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 21, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2014.
- 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.