US940103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-washer.
Assignee: Individual
•
Filing: 1909-08-31
•
Granted: 1909-11-16
•
Expires: 1929-08-31
Abstract
No abstract record available.
Inventors
- 👤 Walther Feld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:20
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/14; C02F3/16; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/234; B01F23/2342; B01F23/23421
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) | 1912-11-15 | 1913-05-17 | 1913-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-11-15 | 1917-05-17 | 1917-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-11-15 | 1921-05-17 | 1921-11-16 | $7700.00 | Window Closed / Lapsed |