Patent US2934639A successfully refreshed from Google Patents.
US2934639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio receiver mounted on wall receptacle
Assignee: Individual
•
Filing: 1957-11-18
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Granted: 1960-04-26
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Expires: 1977-11-18
Abstract
No abstract record available.
Inventors
- 👤 Beryl T Salisbury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:15
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR963196A
Cited
US2108846A
Cited
US2046927A
Cited
US2514246A
Cited
US2630526A
Cited
US2662975A
Cited
US2820890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-26 | 1963-10-26 | 1964-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-26 | 1967-10-26 | 1968-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-26 | 1971-10-26 | 1972-04-26 | $7700.00 | Window Closed / Lapsed |