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Patent US2949609A successfully refreshed from Google Patents.
US2949609A
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US
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Auxiliary sun glasses
Assignee: Individual
•
Filing: 1957-09-30
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Granted: 1960-08-23
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Expires: 1977-09-30
Abstract
No abstract record available.
Inventors
- 👤 Robert H Sager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:45
CPC Classifications
G; G02; G02C; G02C9/00; G02C9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1310077A
Cited
US1433637A
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US2274791A
Cited
US2413193A
Cited
US2516764A
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US2668952A
Cited
US2714717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-23 | 1964-02-22 | 1964-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-23 | 1968-02-22 | 1968-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-23 | 1972-02-22 | 1972-08-23 | $7700.00 | Window Closed / Lapsed |