US2507191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antidistorting and retarding device for signal transmission
Assignee: Individual
•
Filing: 1945-05-22
•
Granted: 1950-05-09
•
Expires: 1965-05-22
Abstract
No abstract record available.
Inventors
- 👤 Bayard Honore Marcel
- 👤 Roquet Raymond Jacques Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:37
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/30; H03H7/32; H04; H04L; H04L25/00; H04L25/02; H04L25/03; H04L25/03006; H04L25/03012; H04L25/03114; H04L25/03127
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US711943A
Cited
US888509A
Cited
US1766919A
Cited
US1804547A
Cited
US1917885A
Cited
US2174221A
Cited
US2146824A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-08 | 1953-11-07 | 1954-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-08 | 1957-11-07 | 1958-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-08 | 1961-11-07 | 1962-05-09 | $7700.00 | Window Closed / Lapsed |