US2634748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure regulator valve
Assignee: Deere and Co
•
Filing: 1949-01-08
•
Granted: 1953-04-14
•
Expires: 1969-01-08
Abstract
No abstract record available.
Inventors
- 👤 Charles S Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:49
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/168; F16K1/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7876; Y10T137/7877; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7932
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US140006A
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US247724A
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US290450A
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US461237A
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US526176A
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US14429A
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US1508817A
Cited
US1189173A
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US1582938A
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US1679898A
Cited
US1994958A
Cited
US2470372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |