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US2745985A
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US
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Pulse amplitude analysers
Assignee: Individual
•
Filing: 1951-10-12
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Granted: 1956-05-15
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Expires: 1971-10-12
Abstract
No abstract record available.
Inventors
- 👤 Lewis Ian Alexander Darroch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:57
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/20; G01R13/208
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2465355A
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US2454652A
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US2524296A
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US2577758A
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US2548789A
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US2700151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |