Patent US2491320A successfully refreshed from Google Patents.
US2491320A
Expired / Lapsed
US
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Neutron detector and method of making same
Assignee: Individual
•
Filing: 1944-07-27
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Granted: 1949-12-13
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Expires: 1964-07-27
Abstract
No abstract record available.
Inventors
- 👤 Philip G Koontz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:16
CPC Classifications
G; G01; G01T; G01T3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR801400A
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US2230618A
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US2298885A
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US2361925A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |