Patent US4986852A successfully refreshed from Google Patents.
US2558260A
Expired / Lapsed
US
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Valve assembly
Assignee: Parker Appliance Co
•
Filing: 1944-09-05
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Granted: 1951-06-26
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Expires: 1964-09-05
Abstract
No abstract record available.
Inventors
- 👤 Maky Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:48
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/08; F16K11/087; F16K11/0873; F16K11/0876
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US743511A
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US920268A
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US1331025A
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US1424094A
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US1784381A
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US1977592A
Cited
US1954018A
Cited
US2350905A
Cited
US2373925A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |