US2862188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic modulator device
Assignee: Lockheed Martin Corp
•
Filing: 1954-06-17
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Granted: 1958-11-25
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Expires: 1974-06-17
Abstract
No abstract record available.
Inventors
- 👤 Victor A Misek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:15
CPC Classifications
H; H03; H03C; H03C1/00; H03C1/08; H03C1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1597323A
Cited
US2254943A
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US2297251A
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US2401384A
Cited
FR993144A
Cited
US2591406A
Cited
US2659866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |