US2638883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel dilution device
Assignee: Individual
•
Filing: 1949-12-30
•
Granted: 1953-05-19
•
Expires: 1969-12-30
Abstract
No abstract record available.
Inventors
- 👤 Simon Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:05
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/01; B60R25/04; B60R25/042; Y; Y10; Y10T; Y10T137/00; Y10T137/7069; Y10T137/7131; Y10T137/7194; Y10T70/00; Y10T70/50; Y10T70/5889; Y10T70/5912; Y10T70/5916
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1294328A
Cited
US1000523A
Cited
US1379292A
Cited
US1582528A
Cited
US2059688A
Cited
FR773014A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |