US879476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal pump with funnel-shaped guide-pipes in the suction-space between the suction-pipe and ring of blades.
Assignee: Siemens Schuckertwerke AG
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Filing: 1906-10-25
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Granted: 1908-02-18
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Expires: 1926-10-25
Abstract
No abstract record available.
Inventors
- 👤 Otto Krell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:39
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/4206; F04D29/4213
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1911-02-17 | 1911-08-19 | 1912-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1915-02-17 | 1915-08-19 | 1916-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1919-02-17 | 1919-08-19 | 1920-02-18 | $7700.00 | Window Closed / Lapsed |