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Patent US3082101A successfully refreshed from Google Patents.
US3082101A
Expired / Lapsed
US
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Optical glass
Assignee: Schott AG
•
Filing: 1958-11-10
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Granted: 1963-03-19
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Expires: 1978-11-10
Abstract
No abstract record available.
Inventors
- 👤 Geffcken Walter
- 👤 Faulstich Marga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:40
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/12; C03C3/14; C03C3/15; Y; Y10; Y10S; Y10S501/00; Y10S501/90; Y10S501/901; Y10S501/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
AN OPTICAL GLASS HAVING A REFRACTIVE INDEX BETWEEN 1. 70 AND 1.82 AND A HIGH V-VALUE OF AT LEAST 45 AND CONSISTING ESSENTIALLY OF LA203,TH02,AND B203 THE LA203 AND B203 BEING PRESENT IN THE GLASS COMPOSITION WITHIN AN AREA DETERMINED BY THE FOLLOWING COORDINATES EXPRESSED IN PERCENTAGES BY WEIGHT:
Claim 2
Dependent Claim
49 words
AN OPTICAL GLASS HAVING A REFRACTIVE INDEX BETWEEN 1. 70 AND 1.82 AND A HIGH V-VALUE OF AT LEAST 45 AND CONSISTING ESSENTIALLY OF LA203,TH02,AND B203 THE LA203 AND B203 BEING PRESENT IN THE GLASS COMPOSITION WITHIN AN AREA DETERMINED BY THE FOLLOWING COORDINATES EXPRESSED IN PERCENTAGES BY WEIGHT:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |