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 02:56
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/12; H01P5/16; H01P5/19; H01P5/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2456679A
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US2581156A
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US2630474A
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US2655635A
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US2692335A
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US2702366A
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US2769146A
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US2701861A
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US2782379A
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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 |