Patent US2632238A successfully refreshed from Google Patents.
US2632238A
Expired / Lapsed
US
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Valve removing tool
Assignee: Individual
•
Filing: 1950-06-27
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Granted: 1953-03-24
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Expires: 1970-06-27
Abstract
No abstract record available.
Inventors
- 👤 Dyck David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:49
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/24; B25B27/26; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53552; Y10T29/53561; Y10T29/53683; Y10T29/53796; Y10T29/53835
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1655641A
Cited
US1164452A
Cited
US1403754A
Cited
US2076834A
Cited
US2365023A
Cited
US2386253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |