US2515187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wide dynamic range amplifying and demodulating system
Assignee: Individual
•
Filing: 1942-04-09
•
Granted: 1950-07-18
•
Expires: 1962-04-09
Abstract
No abstract record available.
Inventors
- 👤 William R Bliss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:57
CPC Classifications
H; H03; H03D; H03D1/00; H03D1/08; H03D1/10; G; G01; G01S; G01S7/00; G01S7/02; G01S7/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1477017A
Cited
US1711658A
Cited
US1808915A
Cited
US2014509A
Cited
US2031072A
Cited
US2269011A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |