US2531804A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measurement of the intensity of penetrative radiations
Assignee: Tracerlab Inc
•
Filing: 1949-09-24
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Granted: 1950-11-28
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Expires: 1969-09-24
Abstract
No abstract record available.
Inventors
- 👤 Jack R Carlin
- 👤 Eric T Clarke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:02
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/02; G; G01; G01T; G01T1/00; G01T1/16; G01T1/185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB340231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |