US3040670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumps
Assignee: Flowserve Corp
•
Filing: 1959-10-16
•
Granted: 1962-06-26
•
Expires: 1979-10-16
Abstract
No abstract record available.
Inventors
- 👤 Robert C Schenck
- 👤 Jacob B Freed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:00
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/18; F04D29/22; F04D29/2261; F04D29/2266
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1556657A
Cited
US1756324A
Cited
GB348466A
Cited
DE565019C
Cited
US2046226A
Cited
US2835203A
Cited
US2941780A
Cited
US2835320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |