Patent US1030366A successfully refreshed from Google Patents.
US1030366A
Expired / Lapsed
US
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Water-purifying apparatus.
Assignee: Individual
•
Filing: 1911-08-21
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Granted: 1912-06-25
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Expires: 1931-08-21
Abstract
No abstract record available.
Inventors
- 👤 David L Winters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:49
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/0039
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) | 1915-06-25 | 1915-12-25 | 1916-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-06-25 | 1919-12-25 | 1920-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-06-25 | 1923-12-25 | 1924-06-25 | $7700.00 | Window Closed / Lapsed |