US2775207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure centrifugal pump
Assignee: Individual
•
Filing: 1952-03-24
•
Granted: 1956-12-25
•
Expires: 1972-03-24
Abstract
No abstract record available.
Inventors
- 👤 Earl A Peterman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:31
CPC Classifications
F; F04; F04D; F04D1/00; F04D1/06; F04D1/063; F04D1/066; F04D13/00; F04D13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US846971A
Cited
US854012A
Cited
US955168A
Cited
FR411913A
Cited
US1130422A
Cited
US1734000A
Cited
AT105930B
Cited
GB342065A
Cited
US2319730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-25 | 1960-06-25 | 1960-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-25 | 1964-06-25 | 1964-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-25 | 1968-06-25 | 1968-12-25 | $7700.00 | Window Closed / Lapsed |