US2848983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor or steam generating plant with resuperheaters
Assignee: Sulzer AG
•
Filing: 1954-12-20
•
Granted: 1958-08-26
•
Expires: 1974-12-20
Abstract
No abstract record available.
Inventors
- 👤 Lieberherr Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:52
CPC Classifications
F; F22; F22B; F22B35/00; F22B35/06; F22B35/10; F22B35/12; F22G; F22G1/00; F22G1/02; F22G1/04; Y; Y10; Y10S; Y10S122/00; Y10S122/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1931948A
Cited
GB581458A
Cited
US2649079A
Cited
US2579027A
Cited
US2602433A
Cited
US2685280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |