US2981840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detecting device
Assignee: Individual
•
Filing: 1957-03-26
•
Granted: 1961-04-25
•
Expires: 1977-03-26
Abstract
No abstract record available.
Inventors
- 👤 Nahmias Maurice Elie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:43
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/62; G01N27/64; G01N27/66; G08; G08B; G08B17/00; G08B17/10; G08B17/11; G08B17/113
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2735944A
Cited
GB398722A
Cited
US2481964A
Cited
US2531144A
Cited
US2634609A
Cited
US2641710A
Cited
US2745970A
Cited
US2757290A
Cited
US2702898A
Cited
US2817768A
Cited
US2908819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |