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US2163403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized oscillator
Assignee: AT&T Inc
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Filing: 1937-07-02
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Granted: 1939-06-20
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Expires: 1957-07-02
Abstract
No abstract record available.
Inventors
- 👤 Larned A Meacham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:14
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/08; H03B5/14; H03B5/16; H04; H04B; H04B3/00; H04B3/02; H04B3/04; H04B3/06; H04B3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-06-19 | 1942-12-19 | 1943-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-06-19 | 1946-12-19 | 1947-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-06-19 | 1950-12-19 | 1951-06-20 | $7700.00 | Window Closed / Lapsed |