Patent US3473944A successfully refreshed from Google Patents.
US3473944A
Expired / Lapsed
US
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Radiation-reflecting media
Assignee: Corning Glass Works
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Filing: 1966-09-22
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Granted: 1969-10-21
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Expires: 1986-09-22
Abstract
No abstract record available.
Inventors
- 👤 Harold F Dates
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:26
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/20; G02B5/208; C; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/25; C03C17/34; C03C17/3411; C03C17/3417; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/211; C03C2217/23; C03C2217/24; C03C2217/244; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/112
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) | 1972-10-20 | 1973-04-21 | 1973-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-20 | 1977-04-21 | 1977-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-20 | 1981-04-21 | 1981-10-21 | $7700.00 | Window Closed / Lapsed |