US677893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1898-04-26
•
Granted: 1901-07-09
•
Expires: 1918-04-26
Abstract
No abstract record available.
Inventors
- 👤 Jean Auguste Maignen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:11
CPC Classifications
B; B01; B01D; B01D69/00; B01D69/12
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) | 1904-07-08 | 1905-01-07 | 1905-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1908-07-08 | 1909-01-07 | 1909-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1912-07-08 | 1913-01-07 | 1913-07-09 | $7700.00 | Window Closed / Lapsed |