US2845536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio frequency transmitter
Assignee: PERMA POWER CO
•
Filing: 1954-11-08
•
Granted: 1958-07-29
•
Expires: 1974-11-08
Abstract
No abstract record available.
Inventors
- 👤 Goldstein Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:32
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/70; E05F15/77
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2175174A
Cited
US2520823A
Cited
US2498809A
Cited
US2624005A
Cited
US2479964A
Cited
US2695951A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-28 | 1962-01-27 | 1962-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-28 | 1966-01-27 | 1966-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-28 | 1970-01-27 | 1970-07-29 | $7700.00 | Window Closed / Lapsed |