US976565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well-pumping mechanism.
Assignee: EL CAMPO MACHINE Co
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Filing: 1909-11-22
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Granted: 1910-11-22
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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
2026-11-01 09:32
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/426; F04D13/00; F04D13/02; F04D13/06; F04D13/08; F04D13/10; F04D29/4273; F04D29/70; F04D29/708; F05; F05D; F05D2250/00; F05D2250/50; F05D2250/51; F05D2250/52; Y; Y10; Y10S; Y10S415/00; Y10S415/901
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) | 1913-11-21 | 1914-05-23 | 1914-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-11-21 | 1918-05-23 | 1918-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-11-21 | 1922-05-23 | 1922-11-22 | $7700.00 | Window Closed / Lapsed |