Patent US2690071A successfully refreshed from Google Patents.
US2690071A
Expired / Lapsed
US
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Weather sealed lock mechanism
Assignee: Briggs and Stratton Corp
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Filing: 1951-04-11
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Granted: 1954-09-28
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Expires: 1971-04-11
Abstract
No abstract record available.
Inventors
- 👤 Edward N Jacobi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:25
CPC Classifications
E; E05; E05B; E05B17/00; E05B17/14; E05B17/18; E05B17/181; Y; Y10; Y10T; Y10T70/00; Y10T70/80; Y10T70/8432; Y10T70/8649
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US583905A
Cited
US914669A
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US952643A
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US1965942A
Cited
US2036738A
Cited
US2076004A
Cited
US2261472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |