US3711322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass having semitransparent colored coating
Assignee: Nippon Sheet Glass Co Ltd
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Filing: 1970-07-06
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Granted: 1973-01-16
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Expires: 1990-07-06
Abstract
Abstract A GLASS SUBSTRATE HAVING A THIN SEMITRANSPARENT FILM OF METAL OXIDES THEREON, SAID FILM CONTAINING OXIDES OF (A) AT LEAST ONE OF COBALT, CHROMIUM AND IRON, AND (B) AT LEAST ONE OF CALCIUM AND MAGNESIUM.
Inventors
- 👤 A Kushihashi
- 👤 N Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:11
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/25; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/229; C03C2217/23; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/112; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265
Claims Analysis
Total Claims: 0
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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) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |