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US2799470A
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Sealing assembly for valves
Assignee: Parker Appliance Co
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Filing: 1948-03-18
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Granted: 1957-07-16
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Expires: 1968-03-18
Abstract
No abstract record available.
Inventors
- 👤 Margrave Wilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:00
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/08; F16K5/14; F16K5/18; F16K5/188; F16K5/04; F16K5/0457; F16K5/0464
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1784381A
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US2191232A
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US2520288A
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US2471941A
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US2392198A
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US2390201A
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US2404816A
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US2417400A
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US2603449A
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US2751185A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-15 | 1961-01-14 | 1961-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-15 | 1965-01-14 | 1965-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-15 | 1969-01-14 | 1969-07-16 | $7700.00 | Window Closed / Lapsed |