Patent US2976497A successfully refreshed from Google Patents.
US2976497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio frequency net-works
Assignee: Individual
•
Filing: 1955-11-23
•
Granted: 1961-03-21
•
Expires: 1975-11-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Chester B Watts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:27
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/12; H01P5/16; H01P5/19; H01P5/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2456679A
Cited
US2581156A
Cited
US2630474A
Cited
US2655635A
Cited
US2692335A
Cited
US2702366A
Cited
US2736864A
Cited
US2769146A
Cited
US2701861A
Cited
US2782379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |