US791457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for treating liquids.
Assignee: AMERICUS ELECTROHERMATIC Co
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Filing: 1904-05-24
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Granted: 1905-06-06
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Expires: 1924-05-24
Abstract
No abstract record available.
Inventors
- 👤 Leon Dion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:19
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/42; B01D61/56; C; C02; C02F; C02F1/00; C02F1/48
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) | 1908-06-05 | 1908-12-05 | 1909-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-06-05 | 1912-12-05 | 1913-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-06-05 | 1916-12-05 | 1917-06-06 | $7700.00 | Window Closed / Lapsed |