US5353765B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel management system for a gaseous fuel internal combustion engine
Assignee: Hitachi America Ltd
•
Filing: 1993-05-10
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Granted: 1997-03-18
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Expires: 2013-05-10
Abstract
No abstract record available.
Inventors
- 👤 George Saikalis
- 👤 Sugiura Masatoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:15
CPC Classifications
F; F02; F02D; F02D19/00; F02D19/02; F02D19/021; F02D19/023; F02D19/024; F02D19/025; F02D19/026; F02D19/027; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/30
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) | 2000-03-17 | 2000-09-16 | 2001-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-03-17 | 2004-09-16 | 2005-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-03-17 | 2008-09-16 | 2009-03-18 | $7700.00 | Window Closed / Lapsed |