US2609506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gaseous tube oscillator
Assignee: Hartford National Bank and Trust Co
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Filing: 1948-08-03
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Granted: 1952-09-02
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Expires: 1968-08-03
Abstract
No abstract record available.
Inventors
- 👤 Siezen Gerrit Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:46
CPC Classifications
B; B25; B25C; B25C3/00; B25C3/006; G; G06; G06V; G06V10/00; G06V10/20; G06V10/24; G06V10/70; G06V10/74; G06V10/75; H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/46; H03; H03B; H03B7/00; H03B7/02; H03B7/10; H03K; H03K3/00; H03K3/02; H03K3/53; H03K3/55; H03K4/00; H03K4/06; H03K4/08; H03K4/86
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |