US2840316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch drive unit and control system
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1956-03-05
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Granted: 1958-06-24
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Expires: 1976-03-05
Abstract
No abstract record available.
Inventors
- 👤 Edward J Herbenar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:46
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/12; F16D25/14; F01; F01P; F01P7/00; F01P7/02; F01P7/08; F01P7/081; F01P7/082; F01P7/085; F16D13/00; F16D13/22; F16D13/24; F16D13/26; F16D48/00; F16D48/02; F16D2048/0209; F16D2048/0221
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) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |