US643972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable pump.
Assignee: Individual
•
Filing: 1899-03-31
•
Granted: 1900-02-20
•
Expires: 1919-03-31
Abstract
No abstract record available.
Inventors
- 👤 William M Page
- 👤 Charles S Edmonds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:28
CPC Classifications
F; F04; F04B; F04B33/00; F04B33/005; F16; F16J; F16J10/00; F16J10/02; Y; Y10; Y10T; Y10T403/00; Y10T403/71
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) | 1903-02-20 | 1903-08-22 | 1904-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-02-20 | 1907-08-22 | 1908-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-02-20 | 1911-08-22 | 1912-02-21 | $7700.00 | Window Closed / Lapsed |