US2686500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor generator
Assignee: Babcock and Wilcox Co
•
Filing: 1949-09-01
•
Granted: 1954-08-17
•
Expires: 1969-09-01
Abstract
No abstract record available.
Inventors
- 👤 Edwin J Hauck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:10
CPC Classifications
F; F22; F22B; F22B21/00; F22B21/34; F22B21/341; F22B21/343; F22B21/345
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1878908A
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US1929891A
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US1940132A
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US2107022A
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US2126730A
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US2244451A
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US2347574A
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US2313251A
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US2416053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |