US2819099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flange union fitting with contractible lined wedge
Assignee: Westinghouse Air Brake Co
•
Filing: 1953-06-12
•
Granted: 1958-01-07
•
Expires: 1973-06-12
Abstract
No abstract record available.
Inventors
- 👤 Henry I Rittle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:42
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/08; F16L41/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1304126A
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US808922A
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US969492A
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US1762721A
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US1822637A
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FR752353A
Cited
US2111419A
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US2562359A
Cited
US2585453A
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US2704676A
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US2768846A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |