US180612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in water-wheels
Assignee: —
•
Filing: —
•
Granted: 1876-08-01
•
Expires: 1893-08-01
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:44
CPC Classifications
F; F03; F03B; F03B3/00; F03B3/02; F04; F04D; F04D15/00; F04D15/0027; F04D15/0038; Y; Y02; Y02E; Y02E10/00; Y02E10/20
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) | 1879-08-01 | 1880-01-31 | 1880-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1883-08-01 | 1884-01-31 | 1884-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1887-08-01 | 1888-01-31 | 1888-08-01 | $7700.00 | Window Closed / Lapsed |