US2424595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumping mechanism
Assignee: HYDRAULIC IMPACT TOOL Co
•
Filing: 1944-03-13
•
Granted: 1947-07-29
•
Expires: 1964-03-13
Abstract
No abstract record available.
Inventors
- 👤 Charles F Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:39
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/02; F04B43/06; F04B43/067; F04B43/0009; F04B43/0054; F04B53/00; F04B53/10; F04B53/1037; F04B53/1047; F04B53/106; F04B53/1067; F04B53/107; F04B53/109
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189406657A
Cited
US1224447A
Cited
US1301485A
Cited
US1339500A
Cited
US1764712A
Cited
US1990139A
Cited
DE554055C
Cited
US2303597A
Cited
US2343962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-28 | 1951-01-27 | 1951-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-28 | 1955-01-27 | 1955-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-28 | 1959-01-27 | 1959-07-29 | $7700.00 | Window Closed / Lapsed |