Patent US531356A successfully refreshed from Google Patents.
US531356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Half to albert libber
Assignee: —
•
Filing: —
•
Granted: 1894-12-25
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Expires: 1911-12-25
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:41
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/236; B01F23/2361; B01F23/23611; B01F23/231; B01F23/23105; B01F23/2312; B01F23/23123; B01F23/23126; B01F23/231265; F; F25; F25C; F25C1/00; F25C1/18; Y; Y10; Y10S; Y10S261/00; Y10S261/07
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) | 1897-12-24 | 1898-06-25 | 1898-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1901-12-25 | 1902-06-26 | 1902-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1905-12-25 | 1906-06-26 | 1906-12-26 | $7700.00 | Window Closed / Lapsed |