US973782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal force-pump.
Assignee: Individual
•
Filing: 1908-10-29
•
Granted: 1910-10-25
•
Expires: 1928-10-29
Abstract
No abstract record available.
Inventors
- 👤 Thomas Russell Hayton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:49
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/44; F04D29/441; F04D29/444
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) | 1913-10-24 | 1914-04-25 | 1914-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-10-24 | 1918-04-25 | 1918-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-10-24 | 1922-04-25 | 1922-10-25 | $7700.00 | Window Closed / Lapsed |