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US772989A
Expired / Lapsed
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Centrifugal pump.
Assignee: JOHN ALEXANDER CRAIG
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Filing: 1904-01-08
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Granted: 1904-10-25
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Expires: 1924-01-08
Abstract
No abstract record available.
Inventors
- 👤 Irvin C Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:18
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/60; F04D29/62; F04D29/628; Y; Y10; Y10S; Y10S415/00; Y10S415/911
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) | 1907-10-25 | 1908-04-25 | 1908-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-10-25 | 1912-04-25 | 1912-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-10-25 | 1916-04-25 | 1916-10-25 | $7700.00 | Window Closed / Lapsed |