Patent US2334732A successfully refreshed from Google Patents.
Patent US2626355A successfully refreshed from Google Patents.
US2626355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable frequency oscillator
Assignee: Individual
•
Filing: 1945-08-02
•
Granted: 1953-01-20
•
Expires: 1965-08-02
Abstract
No abstract record available.
Inventors
- 👤 Philip A Hoffman
- 👤 Garold K Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:29
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/18; H03B5/1817; H03B5/1835
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2132208A
Cited
US2253503A
Cited
US2404279A
Cited
US2408355A
Cited
US2416565A
Cited
US2404261A
Cited
US2428622A
Cited
US2412805A
Cited
US2477232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-20 | 1956-07-21 | 1957-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-20 | 1960-07-21 | 1961-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-20 | 1964-07-21 | 1965-01-20 | $7700.00 | Window Closed / Lapsed |