US178965A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in hydraulic drawbacks
Assignee: —
•
Filing: —
•
Granted: 1876-06-20
•
Expires: 1893-06-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:26
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B11/028; F15B11/032; F16; F16D; F16D65/00; F16D65/14; F16D65/16; F16D65/22
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) | 1879-06-20 | 1879-12-20 | 1880-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1883-06-20 | 1883-12-20 | 1884-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1887-06-20 | 1887-12-20 | 1888-06-20 | $7700.00 | Window Closed / Lapsed |