Patent US3319040A successfully refreshed from Google Patents.
US2918554A
Expired / Lapsed
US
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Interlock contact mechanism
Assignee: Murray Manufacturing Corp
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Filing: 1957-09-30
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Granted: 1959-12-22
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Expires: 1977-09-30
Abstract
No abstract record available.
Inventors
- 👤 Charles F Brauneck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:50
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/54; H01H50/541; H01H50/545; H01H1/00; H01H1/12; H01H1/14; H01H1/20
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) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |