US4944250B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
US4944250B1 - - Google Patents
Assignee: Foster Wheeler Energy Corp
•
Filing: 1989-03-30
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Granted: 1992-07-14
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Expires: 2009-03-30
Abstract
No abstract record available.
Inventors
- 👤 Seshamani Venkatraman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:55
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/20; B04C5/08; F; F22; F22B; F22B31/00; F22B31/0007; F22B31/0084; F23; F23J; F23J15/00; F23J15/02; F23J15/022; F23J15/027
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) | 1995-07-14 | 1996-01-13 | 1996-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-14 | 2000-01-13 | 2000-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-14 | 2004-01-13 | 2004-07-14 | $7700.00 | Window Closed / Lapsed |