US2617640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Economizer mechanism for carburetors
Assignee: Individual
•
Filing: 1950-04-27
•
Granted: 1952-11-11
•
Expires: 1970-04-27
Abstract
No abstract record available.
Inventors
- 👤 Robert H Hieger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:05
CPC Classifications
F; F02; F02M; F02M1/00; F02M1/08; F02M1/10; F02M5/00; F02M5/10; F02M7/00; F02M7/12; F02M7/133; Y; Y10; Y10S; Y10S277/00; Y10S277/91; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2703; Y10T137/7722; Y10T137/7748; Y10T137/7749
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2109260A
Cited
US2406114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |