Patent US2534538A successfully refreshed from Google Patents.
US2534538A
Expired / Lapsed
US
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Top and spinning device therefor
Assignee: Individual
•
Filing: 1945-12-12
•
Granted: 1950-12-19
•
Expires: 1965-12-12
Abstract
No abstract record available.
Inventors
- 👤 Thoresen Oscar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:52
CPC Classifications
A; A63; A63F; A63F9/00; A63F9/16; A63H; A63H1/00; A63H1/02; A63H27/00; A63H27/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189505082A
Cited
US1033399A
Cited
US1109562A
Cited
GB136741A
Cited
US1366535A
Cited
US1364632A
Cited
US1407027A
Cited
US1771489A
Cited
US1890043A
Cited
US2184459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |