Patent US533643A successfully refreshed from Google Patents.
US533643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
hawkins
Assignee: —
•
Filing: —
•
Granted: 1895-02-05
•
Expires: 1912-02-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:25
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/06; C01B3/08; B; B01; B01J; B01J7/00; B01J7/02; C01B2203/00; C01B2203/06; C01B2203/066
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) | 1898-02-04 | 1898-08-06 | 1899-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1902-02-05 | 1902-08-07 | 1903-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1906-02-05 | 1906-08-07 | 1907-02-06 | $7700.00 | Window Closed / Lapsed |