US2562912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase sensitive demodulator
Assignee: Consolidated Engineering Co Inc
•
Filing: 1947-02-25
•
Granted: 1951-08-07
•
Expires: 1967-02-25
Abstract
No abstract record available.
Inventors
- 👤 Paul F Hawley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:49
CPC Classifications
H; H03; H03C; H03C1/00; H03C1/52; H03C1/54; H03C1/56; H03C1/58; H03D; H03D1/00; H03D1/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1929216A
Cited
US2059594A
Cited
US2240184A
Cited
US2316008A
Cited
US2410386A
Cited
US2417807A
Cited
US2414318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |