US2695977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote relay control by radio
Assignee: ARF Products Inc
•
Filing: 1949-11-29
•
Granted: 1954-11-30
•
Expires: 1969-11-29
Abstract
No abstract record available.
Inventors
- 👤 Julius J Hupert
- 👤 Goldstein Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:42
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/70; E05F15/77
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2361653A
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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) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |