US2636351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion linkage for directing motion of tubular elements
Assignee: Babcock and Wilcox Co
•
Filing: 1950-07-11
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Granted: 1953-04-28
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Expires: 1970-07-11
Abstract
No abstract record available.
Inventors
- 👤 Ernest A Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:15
CPC Classifications
F; F22; F22B; F22B37/00; F22B37/02; F22B37/10; F22B37/20; F22B37/204; F16; F16L; F16L3/00; F16L3/16; F16L3/18; F22B37/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2079165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |