US963756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-stage pump.
Assignee: EL CAMPO MACHINE Co
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Filing: 1909-11-22
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Granted: 1910-07-12
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Expires: 1929-11-22
Abstract
No abstract record available.
Inventors
- 👤 William T Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:25
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/12; F04D13/14; F01; F01D; F01D1/00; F01D1/02; F01D1/026
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) | 1913-07-11 | 1914-01-10 | 1914-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-07-11 | 1918-01-10 | 1918-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-07-11 | 1922-01-10 | 1922-07-12 | $7700.00 | Window Closed / Lapsed |