US2594490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for securing dry steam
Assignee: Combustion Engineering Inc
•
Filing: 1948-01-30
•
Granted: 1952-04-29
•
Expires: 1968-01-30
Abstract
No abstract record available.
Inventors
- 👤 Ward S Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:27
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/02; F22B37/26; F22B37/32; F22B37/322; Y; Y10; Y10S; Y10S55/00; Y10S55/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2059521A
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US791517A
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US767721A
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GB172838A
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US2289970A
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US2297704A
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US2320345A
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US2368632A
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US2346672A
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US2395855A
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US2368211A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |