US2841784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pilot pulse dual channel gain control
Assignee: Marconis Wireless Telegraph Co Ltd
•
Filing: 1954-03-29
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Granted: 1958-07-01
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Expires: 1974-03-29
Abstract
No abstract record available.
Inventors
- 👤 Starks-Field Alfred Benjamin
- 👤 Keall Oswold Edward
- 👤 Priestley Eric Holden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:03
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/40; G01S7/4004; G01S7/4021; G01S13/00; G01S13/02; G01S13/06; G01S13/42; G01S13/44; G01S13/4427; G01S13/4436; G01S7/28; G01S7/285; G01S7/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |