US2649050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal pump
Assignee: Sumitomo Rubber USA LLC
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Filing: 1951-04-09
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Granted: 1953-08-18
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Expires: 1971-04-09
Abstract
No abstract record available.
Inventors
- 👤 Dibdin Thomas James Rimbault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:13
CPC Classifications
F; F23; F23L; F23L7/00; F23L7/002; F23L7/005; 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)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |