US2645210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam generator
Assignee: YUBA Manufacturing Co
•
Filing: 1948-05-22
•
Granted: 1953-07-14
•
Expires: 1968-05-22
Abstract
No abstract record available.
Inventors
- 👤 Robert L Harris
- 👤 Lothrop Marcus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 03:02
CPC Classifications
F; F22; F22B; F22B21/00; F22B21/22; F22B21/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1737712A
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US1818057A
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FR740226A
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US1992305A
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US2115567A
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US2189532A
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US2223856A
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US2256882A
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US2245332A
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US2273767A
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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) | 1956-07-13 | 1957-01-12 | 1957-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-13 | 1961-01-12 | 1961-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-13 | 1965-01-12 | 1965-07-14 | $7700.00 | Window Closed / Lapsed |