Joint doping of porous glasses to produce materials with high modifier concentrations
CA 1083183 A · Owner: Litovitz, Theodore A. · Inventors: Simmons, Joseph H.; Macedo, Pedro B.; Samanta, Mrinmay
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A glass composition having at least 85 mole percent of Si02, where the improvement comprises at least 7 wt percent of at least one member selected from the group consisting of PbO and Bi203 and at least 1.5 mole percent of at least one member selected from the group consisting of K20 Rb20 and Cs20. The, method for producing the glass composition comprises immersing a porous glass matrix in a dopant impregnating solution containing a mixture of dopants to impregnate the porous glass with the solution and form an impregnated porous glass matrix having the above glass composition.
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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
- Granted August 5, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 5, 1997.
- 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
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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.