US3379094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light meter
Assignee: Individual
•
Filing: 1964-05-25
•
Granted: 1968-04-23
•
Expires: 1984-05-25
Abstract
No abstract record available.
Inventors
- 👤 Bertram Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:34
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/42; G01J1/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3125718A
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US1564933A
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US2648254A
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US2571458A
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US2872643A
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US3005915A
Cited
US3028499A
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US3247387A
Cited
US3147680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |