US998317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-purifying apparatus.
Assignee: Individual
•
Filing: 1911-03-21
•
Granted: 1911-07-18
•
Expires: 1931-03-21
Abstract
No abstract record available.
Inventors
- 👤 Albert Winckler
- 👤 Charles Winckler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:38
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/40; B01F23/49; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2516; Y10T137/2519
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1914-07-17 | 1915-01-16 | 1915-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1918-07-17 | 1919-01-16 | 1919-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1922-07-17 | 1923-01-16 | 1923-07-18 | $7700.00 | Window Closed / Lapsed |