US2432093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wave transmission network
Assignee: AT&T Inc
•
Filing: 1942-07-30
•
Granted: 1947-12-09
•
Expires: 1962-07-30
Abstract
No abstract record available.
Inventors
- 👤 Fox Arthur Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:14
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/08; H01P1/00; H01P1/20; H01P1/207; H01P1/213; H01P1/2138; H01P5/02; H01P5/022; H01P5/024; H01Q; H01Q13/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2106768A
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US2200023A
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US2151157A
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US2155508A
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US2197122A
Cited
US2253503A
Cited
US2253589A
Cited
US2323201A
Cited
US2259690A
Cited
US2406402A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-08 | 1951-06-09 | 1951-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-08 | 1955-06-09 | 1955-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-08 | 1959-06-09 | 1959-12-09 | $7700.00 | Window Closed / Lapsed |