Patent US2926912A successfully refreshed from Google Patents.
US2641831A
Expired / Lapsed
US
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Sleeve puller
Assignee: Individual
•
Filing: 1950-11-21
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Granted: 1953-06-16
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Expires: 1970-11-21
Abstract
No abstract record available.
Inventors
- 👤 Helton William Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:28
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/02; B25B27/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49815; Y10T29/49822; Y10T29/53; Y10T29/53796; Y10T29/53839; Y10T29/53843
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US869861A
Cited
GB195169A
Cited
US1705789A
Cited
US2252036A
Cited
US2377304A
Cited
US2373054A
Cited
US2380068A
Cited
US2430847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |