US2474098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photometric measurement of light values using automatic gain control in photomultiplier tubes
Assignee: RCA Corp
•
Filing: 1946-03-29
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Granted: 1949-06-21
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Expires: 1966-03-29
Abstract
No abstract record available.
Inventors
- 👤 Glenn L Dimmick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:19
CPC Classifications
G; G01; G01J; G01J1/00; G01J1/10; G01J1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1932337A
Cited
US1881336A
Cited
US2240722A
Cited
US2411741A
Cited
US2361549A
Cited
US2442910A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |