US2812959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flange union fitting with gland expandible into an opening
Assignee: Westinghouse Air Brake Co
•
Filing: 1953-08-21
•
Granted: 1957-11-12
•
Expires: 1973-08-21
Abstract
No abstract record available.
Inventors
- 👤 Chester A Fuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:26
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/02; F16L23/024; Y; Y10; Y10S; Y10S285/00; Y10S285/908
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US320645A
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US591468A
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US1057169A
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US1029715A
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US1630657A
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US1862153A
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US2211776A
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US2273398A
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US2562359A
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US2494849A
Cited
US2631047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |