US209767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in churns
Assignee: —
•
Filing: —
•
Granted: 1878-11-12
•
Expires: 1895-11-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:11
CPC Classifications
A; A47; A47J; A47J43/00; A47J43/04; A47J43/046; B; B01; B01F; B01F27/00; B01F27/80; B01F27/808
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) | 1881-11-11 | 1882-05-13 | 1882-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1885-11-11 | 1886-05-13 | 1886-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1889-11-11 | 1890-05-13 | 1890-11-12 | $7700.00 | Window Closed / Lapsed |