US2613646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve mechanism for pneumatic tools
Assignee: Independent Pneumatic Tool Co
•
Filing: 1949-03-25
•
Granted: 1952-10-14
•
Expires: 1969-03-25
Abstract
No abstract record available.
Inventors
- 👤 Hilmer A Gillerstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:30
CPC Classifications
B; B25; B25D; B25D9/00; B25D9/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1774266A
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US1855240A
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US1852724A
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US2162036A
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US2252711A
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US2260300A
Cited
US2369714A
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US2415521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-14 | 1956-04-14 | 1956-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-14 | 1960-04-14 | 1960-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-14 | 1964-04-14 | 1964-10-14 | $7700.00 | Window Closed / Lapsed |