US3512869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Materials and articles having light-transmission properties which vary as a function of incident radiation
Assignee: AGC Glass Europe SA
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Filing: 1966-10-20
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Granted: 1970-05-19
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Expires: 1986-10-20
Abstract
No abstract record available.
Inventors
- 👤 Emile Plumat
- 👤 Lucien Leger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:30
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/66; E06B3/67; E06B3/6715; E06B3/6722; C; C03; C03C; C03C17/00; C03C17/34; C03C17/3411; C03C17/3429; C03C17/3447; C03C17/3494; E06B7/00; E06B7/28; G; G03; G03C; G03C1/00; G03C1/494; G03C1/496; G03C1/72; G03C1/725; C03C2217/00; C03C2217/20; C03C2217/28; C03C2217/284; C03C2218/00; C03C2218/10; C03C2218/15; C03C2218/151
Claims Analysis
Total Claims: 0
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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) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |