Patent US497088A successfully refreshed from Google Patents.
US497088A
Expired / Lapsed
US
⏱️ 0.0 years remaining
blackmin
Assignee: —
•
Filing: —
•
Granted: 1893-05-09
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Expires: 1910-05-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:40
CPC Classifications
B; B01; B01F; B01F21/00; B01F21/20; B01J; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00079; Y; Y10; Y10S; Y10S423/00; Y10S423/03
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) | 1896-05-08 | 1896-11-07 | 1897-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1900-05-09 | 1900-11-08 | 1901-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1904-05-09 | 1904-11-08 | 1905-05-10 | $7700.00 | Window Closed / Lapsed |