US2544407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical circuits
Assignee: Raytheon Co
•
Filing: 1946-05-02
•
Granted: 1951-03-06
•
Expires: 1966-05-02
Abstract
No abstract record available.
Inventors
- 👤 Vernon C Westcott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:33
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/18; H03B5/1817; H03B5/1835; H03K; H03K3/00; H03K3/02; H03K3/04; H03K3/05; H03K3/06; H03K3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1945544A
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US1989082A
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US2212173A
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US2236985A
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US2404399A
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US2362470A
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US2413182A
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US2367693A
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US2382413A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |