US2964628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation source for density responsive apparatus
Assignee: Ohmart Corp
•
Filing: 1956-02-01
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Granted: 1960-12-13
•
Expires: 1976-02-01
Abstract
No abstract record available.
Inventors
- 👤 Philip E Ohmart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:03
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/28; G01F23/284; G01F23/288; G01N; G01N23/00; G01N23/02; G01N23/06; G01N23/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2479882A
Cited
US2516261A
Cited
US2592115A
Cited
US2559793A
Cited
US2674695A
Cited
US2765410A
Cited
US2737592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |