Patent US2322358A successfully refreshed from Google Patents.
US2322358A
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US
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Lifting mechanism
Assignee: GEORGE A TUTTLE
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Filing: 1941-10-21
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Granted: 1943-06-22
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Expires: 1961-10-21
Abstract
No abstract record available.
Inventors
- 👤 Lee R Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:11
CPC Classifications
B; B60; B60S; B60S9/00; B60S9/02; B60S9/10
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) | 1946-06-21 | 1946-12-21 | 1947-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-06-21 | 1950-12-21 | 1951-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-06-21 | 1954-12-21 | 1955-06-22 | $7700.00 | Window Closed / Lapsed |