Patent US2551671A successfully refreshed from Google Patents.
US2551671A
Expired / Lapsed
US
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Over-center mechanism
Assignee: Individual
•
Filing: 1946-03-11
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Granted: 1951-05-08
•
Expires: 1966-03-11
Abstract
No abstract record available.
Inventors
- 👤 Harlan N Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:45
CPC Classifications
B; B43; B43L; B43L13/00; B43L13/02; B43L13/04; B43L13/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1074851A
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US1459792A
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US1728834A
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US1813801A
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US2085300A
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US2168940A
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US2226882A
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US2217008A
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US2313341A
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US2296875A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |