US917992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid hoisting machinery.
Assignee: CALUMET ENGINEERING WORKS
•
Filing: 1908-06-08
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Granted: 1909-04-13
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Expires: 1928-06-08
Abstract
No abstract record available.
Inventors
- 👤 Clinton F Blake
- 👤 Christiaan W Aveling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:42
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F15B1/027; F15B13/00; F15B13/02; F15B2211/00; F15B2211/30; F15B2211/305; F15B2211/30525
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) | 1912-04-12 | 1912-10-12 | 1913-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-04-12 | 1916-10-12 | 1917-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-04-12 | 1920-10-12 | 1921-04-13 | $7700.00 | Window Closed / Lapsed |