Patent US2898497A successfully refreshed from Google Patents.
US2898497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airborne radiation detector
Assignee: Individual
•
Filing: 1955-02-08
•
Granted: 1959-08-04
•
Expires: 1975-02-08
Abstract
No abstract record available.
Inventors
- 👤 Thomas R Cartmell
- 👤 John F Gifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:32
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/17; G01T1/178; H; H01; H01J; H01J47/00; H01J47/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2735953A
Cited
US2625657A
Cited
US2532956A
Cited
US2646556A
Cited
US2763790A
Cited
US2712610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |