US3040216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct current to alternating current adapter for rotary solenoid
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1958-07-09
•
Granted: 1962-06-19
•
Expires: 1978-07-09
Abstract
No abstract record available.
Inventors
- 👤 Harrison F Krebs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:25
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/02; H01H50/021; H01H47/00; H01H47/22; H01H47/223
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2510588A
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US1745864A
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US1870064A
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US2094361A
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US2362194A
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US2362690A
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US2786153A
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US2785291A
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US2923869A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |