Patent US5104515A successfully refreshed from Google Patents.
DE807147C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Method for saving fuel in the operation of internal combustion engines and the use of different fuels and their mixtures with different specific weights and equipment for practicing the method
Assignee: SALFA TRUST REG
•
Filing: 1949-11-04
•
Granted: 1951-06-25
•
Expires: 1969-11-04
Abstract
No abstract record available.
Inventors
- 👤 Anatole Favre
- 👤 Herbert Spelter
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-07 08:10
CPC Classifications
F; F02; F02M; F02M1/00; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/434; F02M2700/4342; F02M2700/4347
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
Maintenance schedule is calculated for granted US utility patents.