Patent US363423A successfully refreshed from Google Patents.
Patent US1906469A successfully refreshed from Google Patents.
US1906469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring jack
Assignee: Cinch Manufacturing Corp
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Filing: 1930-05-27
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Granted: 1933-05-02
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Expires: 1950-05-27
Abstract
No abstract record available.
Inventors
- 👤 Carl L Knutson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:10
CPC Classifications
H; H01; H01R; H01R9/00; H01R9/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1936-05-01 | 1936-10-31 | 1937-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-05-01 | 1940-10-31 | 1941-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-05-01 | 1944-10-31 | 1945-05-02 | $7700.00 | Window Closed / Lapsed |