Patent US730052A successfully refreshed from Google Patents.
US730052A
Expired / Lapsed
US
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Rotary pump.
Assignee: EVERETT W BROOKS
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Filing: 1901-09-25
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Granted: 1903-06-02
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Expires: 1921-09-25
Abstract
No abstract record available.
Inventors
- 👤 William S Sharpneck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:15
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/18; F04D29/22; F04D29/2238; F04D29/225
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) | 1906-06-01 | 1906-12-01 | 1907-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-06-01 | 1910-12-01 | 1911-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-06-01 | 1914-12-01 | 1915-06-02 | $7700.00 | Window Closed / Lapsed |