Patent US2601637A successfully refreshed from Google Patents.
US2601637A
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US
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Pocket ionization chamber
Assignee: Individual
•
Filing: 1946-12-03
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Granted: 1952-06-24
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Expires: 1966-12-03
Abstract
No abstract record available.
Inventors
- 👤 John E Rose
- 👤 Emil W Hinspater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:13
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/02; H01J47/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1933063A
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US1855669A
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US1873042A
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US2022117A
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US2121180A
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US2219273A
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US2317023A
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US2536991A
Cited
US2545386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-24 | 1955-12-24 | 1956-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-24 | 1959-12-24 | 1960-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-24 | 1963-12-24 | 1964-06-24 | $7700.00 | Window Closed / Lapsed |