US2592825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency difference indicator
Assignee: The General Electric Company PLC
•
Filing: 1949-09-03
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Granted: 1952-04-15
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Expires: 1969-09-03
Abstract
No abstract record available.
Inventors
- 👤 Rutenberg Anatol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:08
CPC Classifications
G; G01; G01R; G01R23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2176742A
Cited
US2198901A
Cited
US2265203A
Cited
US2309280A
Cited
US2232896A
Cited
US2454687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |