Patent US857768A successfully refreshed from Google Patents.
US857768A
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US
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Method and apparatus for raising liquids by compressed air.
Assignee: Individual
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Filing: 1905-06-20
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Granted: 1907-06-25
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Expires: 1925-06-20
Abstract
No abstract record available.
Inventors
- 👤 Robert Stirling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:20
CPC Classifications
F; F04; F04F; F04F5/00; F04F5/44; F04F5/46
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) | 1910-06-24 | 1910-12-24 | 1911-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-06-24 | 1914-12-24 | 1915-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-06-24 | 1918-12-24 | 1919-06-25 | $7700.00 | Window Closed / Lapsed |