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Patent US2957361A successfully refreshed from Google Patents.
US2957361A
Expired / Lapsed
US
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Power steering attachment
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1953-12-02
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Granted: 1960-10-25
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Expires: 1973-12-02
Abstract
No abstract record available.
Inventors
- 👤 Edward J Herbenar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:36
CPC Classifications
B; B62; B62D; B62D5/00; B62D5/06; B62D5/20; B62D5/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US955896A
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US1035899A
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US1667559A
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US1914267A
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US2433990A
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US2408338A
Cited
US2410049A
Cited
US2626527A
Cited
US2688258A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |