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US2578280A
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Assignee: Elsag Bailey Inc
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Filing: 1950-05-13
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Granted: 1951-12-11
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Expires: 1970-05-13
Abstract
No abstract record available.
Inventors
- 👤 Clayton H Barnard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:36
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US273305A
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US275748A
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US524977A
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US979762A
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FR601094A
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GB255673A
Cited
US1980363A
Cited
US2111409A
Cited
US2308274A
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US2438670A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |