US3504657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for enriching the fuel mixture on cold starts in an electrically controlled injection system for an internal combustion engine
Assignee: Robert Bosch GmbH
•
Filing: 1968-05-16
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Granted: 1970-04-07
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Expires: 1988-05-16
Abstract
No abstract record available.
Inventors
- 👤 Dieter Eichler
- 👤 Wolfgang Reichardt
- 👤 Peter Schmidt
- 👤 Hermann Scholl
- 👤 Josef Wahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:13
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/02; F02D41/04; F02D41/06; F02D41/062; F02D41/064
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2815009A
Cited
US3240191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-06 | 1973-10-06 | 1974-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-06 | 1977-10-06 | 1978-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-06 | 1981-10-06 | 1982-04-07 | $7700.00 | Window Closed / Lapsed |