US3255120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat and infra-red responsive glass composition and method of making it
Assignee: Compagnie de Saint Gobain SA
•
Filing: 1962-01-03
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Granted: 1966-06-07
•
Expires: 1982-01-03
Abstract
No abstract record available.
Inventors
- 👤 Cohen Sabatino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:53
CPC Classifications
G; G21; G21K; G21K4/00; C; C03; C03C; C03C3/00; C03C3/04; C03C3/06; C03C3/076; C03C4/00; C03C4/0078; G01; G01T; G01T1/00; G01T1/02; G01T1/10; G01T1/11; C03C2201/00; C03C2201/06; C03C2201/08; C03C2201/10; C03C2201/30; C03C2201/31; C03C2201/32; C03C2201/50; C03C2203/00; C03C2203/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
19 words
GLASS, ENERGIZABLE BY IRRADIATION, WHICH RESPONDS TO HEAT OR INFRA-RED LIGHT WITH THE EMISSION OF LIGHT, HAVING THE COMPOSITION
Claim 2
Dependent Claim
19 words
GLASS, ENERGIZABLE BY IRRADIATION, WHICH RESPONDS TO HEAT OR INFRA-RED LIGHT WITH THE EMISSION OF LIGHT, HAVING THE COMPOSITION
Claim 3
Independent Claim
102 words
A METHOD OF MAKING HEAT AND INFRA-RED RESPONSIVE GLASS WHICH COMPRISES BOMBARDING GLASS HAVING AS ITS CONSTITUENTS SIO2 AND GEO2, THE GEO2 NOT BEING SUBSTANTIALLY MORE THAN 10 MOLE PERCENT, HAVING FROM 0 TO ABOUT 10 MOLE PERCENT ALKALI METAL OXIDES, AND HAVING FROM 0 TO ABOUT 5 MOLE PERCENT OF AT LEAST ONE OXIDE FROM THE CLASS CONSISTING OF B2O3 AND AL2O3, AND BOMBARDING THE GLASS WITH RADIATION OF THE CLASS OF X-RAYS, GAMMA RAYS, AND ATOMIC PARTICLES UNTIL IT UNDERGOES AN INTERNAL, PERSISTING ELECTRON DISPLACEMENT WHICH IS REVEALED AT ELEVATED TEMPERATURE AND UNDER INFRA-RED RAYS BY THE EMISSION OF LIGHT.
Claim 4
Independent Claim
102 words
A METHOD OF MAKING HEAT AND INFRA-RED RESPONSIVE GLASS WHICH COMPRISES BOMBARDING GLASS HAVING AS ITS CONSTITUENTS SIO2 AND GEO2, THE GEO2 NOT BEING SUBSTANTIALLY MORE THAN 10 MOLE PERCENT, HAVING FROM 0 TO ABOUT 10 MOLE PERCENT ALKALI METAL OXIDES, AND HAVING FROM 0 TO ABOUT 5 MOLE PERCENT OF AT LEAST ONE OXIDE FROM THE CLASS CONSISTING OF B2O3 AND AL2O3, AND BOMBARDING THE GLASS WITH RADIATION OF THE CLASS OF X-RAYS, GAMMA RAYS, AND ATOMIC PARTICLES UNTIL IT UNDERGOES AN INTERNAL, PERSISTING ELECTRON DISPLACEMENT WHICH IS REVEALED AT ELEVATED TEMPERATURE AND UNDER INFRA-RED RAYS BY THE EMISSION OF LIGHT.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |