US2731034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant pressure regulating valve
Assignee: Stewart Warner Corp
•
Filing: 1950-08-10
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Granted: 1956-01-17
•
Expires: 1970-08-10
Abstract
No abstract record available.
Inventors
- 👤 Henry T Dinkelkamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:01
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/10; F; F16; F16N; F16N5/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7782; Y10T137/7793; Y10T137/7801; Y10T137/7808
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US47184A
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US207646A
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US662013A
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US735144A
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US768246A
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US1131341A
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US1365476A
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US1432745A
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US1406012A
Cited
US2463253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |