US2867416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular combustion chamber lining for forced flow steam generators
Assignee: Sulzer AG
•
Filing: 1954-06-30
•
Granted: 1959-01-06
•
Expires: 1974-06-30
Abstract
No abstract record available.
Inventors
- 👤 Lieberherr Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:02
CPC Classifications
F; F22; F22B; F22B29/00; F22B29/06; F22B29/061; F22B29/062
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |