US2493648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical pulse separating circuits
Assignee: EMI Ltd
•
Filing: 1945-06-02
•
Granted: 1950-01-03
•
Expires: 1965-06-02
Abstract
No abstract record available.
Inventors
- 👤 Watton Walter Leslie
- 👤 Bull Eric William
- 👤 White Eric Lawrence Casling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:29
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/28; G01S7/285; G01S7/292; G01S7/2921; H; H04; H04N; H04N5/00; H04N5/04; H04N5/06; H04N5/067; H04N5/073
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2211942A
Cited
US2281934A
Cited
US2229964A
Cited
GB528192A
Cited
US2338395A
Cited
US2359447A
Cited
US2418127A
Cited
US2419548A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |