US2883293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass composition
Assignee: Servo Corp of America
•
Filing: 1957-06-11
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Granted: 1959-04-21
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Expires: 1977-06-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph Jerger
- 👤 John F Mckenna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:41
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/32; C03C3/321; Y; Y10; Y10S; Y10S501/00; Y10S501/90; Y10S501/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
AN OPTICAL, INFRARED-TRANSMITTING GLASS COMPOSITION COMPRISING ESSENTIALLY A FUSED, VITREOUS, NON-CRYSTALLINE MIXTURE OF ARSENIC, SELENIUM AND TELLURIUM IN PERCENTAGES BY WEIGHT DEFINED BY THE AREA ENCLOSED WITHIN SOLID LINE B OF THE TRIAXIAL DIAGRAM, THE PERCENTAGE BY WEIGHT OF THE ELEMENTS BEING NONSTOICHIOMETRIC WITH RESPECT TO MIXTURES CORRESPONDING IN COMPOSITION TO AS2TE3 AND AS2SE3
Claim 2
Dependent Claim
54 words
AN OPTICAL, INFRARED-TRANSMITTING GLASS COMPOSITION COMPRISING ESSENTIALLY A FUSED, VITREOUS, NON-CRYSTALLINE MIXTURE OF ARSENIC, SELENIUM AND TELLURIUM IN PERCENTAGES BY WEIGHT DEFINED BY THE AREA ENCLOSED WITHIN SOLID LINE B OF THE TRIAXIAL DIAGRAM, THE PERCENTAGE BY WEIGHT OF THE ELEMENTS BEING NONSTOICHIOMETRIC WITH RESPECT TO MIXTURES CORRESPONDING IN COMPOSITION TO AS2TE3 AND AS2SE3
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-20 | 1962-10-20 | 1963-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-20 | 1966-10-20 | 1967-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-20 | 1970-10-20 | 1971-04-21 | $7700.00 | Window Closed / Lapsed |