US2485767A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam separator
Assignee: Combustion Engineering Inc
•
Filing: 1944-12-30
•
Granted: 1949-10-25
•
Expires: 1964-12-30
Abstract
No abstract record available.
Inventors
- 👤 Ward S Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:41
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/02; F22B37/26; F22B37/30; F22B37/303
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1946248A
Cited
US2091421A
Cited
US2232256A
Cited
US2298287A
Cited
US2346672A
Cited
US2378862A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |