US2969048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed water supply system for steam generators
Assignee: Sulzer AG
•
Filing: 1954-11-16
•
Granted: 1961-01-24
•
Expires: 1974-11-16
Abstract
No abstract record available.
Inventors
- 👤 Buri Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:29
CPC Classifications
F; F01; F01K; F01K9/00; F01K9/02; F01K9/023
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2081860A
Cited
US2240607A
Cited
US2219359A
Cited
US2220327A
Cited
GB548309A
Cited
US2339957A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |