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US741322A
Expired / Lapsed
US
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Electrolytic water-purifier.
Assignee: Individual
•
Filing: 1903-01-03
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Granted: 1903-10-13
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Expires: 1923-01-03
Abstract
No abstract record available.
Inventors
- 👤 George W Frazier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:51
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/46104; C02F1/46109; C02F2001/46123; C02F2001/46133; C02F2201/00; C02F2201/002; C02F2201/004
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) | 1906-10-12 | 1907-04-13 | 1907-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-10-12 | 1911-04-13 | 1911-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-10-12 | 1915-04-13 | 1915-10-13 | $7700.00 | Window Closed / Lapsed |