US2958767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency controlling system
Assignee: TDK Micronas GmbH
•
Filing: 1944-10-02
•
Granted: 1960-11-01
•
Expires: 1964-10-02
Abstract
No abstract record available.
Inventors
- 👤 Labin Emile
- 👤 Frankel Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:04
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/02; H03J7/04; H03J7/047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1847160A
Cited
US1953973A
Cited
US2018820A
Cited
US2104801A
Cited
US2284266A
Cited
US2201978A
Cited
US2209507A
Cited
US2363583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |