Patent EP0108637A2 successfully refreshed from Google Patents.
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US433710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: —
•
Filing: —
•
Granted: 1890-08-05
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Expires: 1907-08-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:54
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/001; C02F1/003; B; B01; B01D; B01D24/00; B01D24/02; B01D24/10; C02F2307/00; C02F2307/06
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) | 1893-08-04 | 1894-02-03 | 1894-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1897-08-04 | 1898-02-03 | 1898-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1901-08-05 | 1902-02-04 | 1902-08-06 | $7700.00 | Window Closed / Lapsed |