US656919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for impregnating water with gas.
Assignee: ARTHUR M GEROW
•
Filing: 1897-03-22
•
Granted: 1900-08-28
•
Expires: 1917-03-22
Abstract
No abstract record available.
Inventors
- 👤 Edwin C Worns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:47
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/236; B01F23/2362; Y; Y10; Y10S; Y10S261/00; Y10S261/07
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) | 1903-08-28 | 1904-02-27 | 1904-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1907-08-28 | 1908-02-27 | 1908-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1911-08-28 | 1912-02-27 | 1912-08-28 | $7700.00 | Window Closed / Lapsed |