US2419775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump
Assignee: Woodruff & Edwards Inc
•
Filing: 1944-07-03
•
Granted: 1947-04-29
•
Expires: 1964-07-03
Abstract
No abstract record available.
Inventors
- 👤 William H Hazard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:02
CPC Classifications
F; F04; F04B; F04B9/00; F04B9/02; F04B43/00; F04B43/08; F04B43/086; F04B53/00; F04B53/10; F04B53/102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US199288A
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US566895A
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US995815A
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US1442308A
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US1545208A
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US1549064A
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US1647361A
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US1692921A
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FR659847A
Cited
US1881951A
Cited
US2123577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-28 | 1950-10-28 | 1951-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-28 | 1954-10-28 | 1955-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-28 | 1958-10-28 | 1959-04-29 | $7700.00 | Window Closed / Lapsed |