US2392003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for detecting and measuring radiant energy such as light
Assignee: O W WORTMAN
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Filing: 1942-09-26
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Granted: 1946-01-01
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Expires: 1962-09-26
Abstract
No abstract record available.
Inventors
- 👤 Emmett F Sarver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:02
CPC Classifications
H; H01; H01M; H01M14/00; H01M14/005; G; G01; G01J; G01J1/00; G01J1/48; H01G; H01G9/00; H01G9/20
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) | 1948-12-31 | 1949-07-02 | 1950-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-12-31 | 1953-07-02 | 1954-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-12-31 | 1957-07-02 | 1958-01-01 | $7700.00 | Window Closed / Lapsed |