US401452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel mixing device foe gas engines
Assignee: —
•
Filing: —
•
Granted: 1889-04-16
•
Expires: 1906-04-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:54
CPC Classifications
F; F02; F02M; F02M21/00; F02M21/02; F02M21/04; F16; F16K; F16K15/00; F16K15/02; F16K15/06; F16K15/063; F16K15/066; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7842; Y10T137/7846; Y10T137/8593; Y10T137/877
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) | 1892-04-15 | 1892-10-15 | 1893-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1896-04-15 | 1896-10-15 | 1897-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1900-04-16 | 1900-10-16 | 1901-04-17 | $7700.00 | Window Closed / Lapsed |