US2599577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Balanced fluid pressure regulating valve
Assignee: Norgren LLC
•
Filing: 1947-10-08
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Granted: 1952-06-10
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Expires: 1967-10-08
Abstract
No abstract record available.
Inventors
- 👤 Carl A Norgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:30
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0663; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7754; Y10T137/7756; Y10T137/7757; Y10T137/7781; Y10T137/7793; Y10T137/7801
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US880402A
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US1515911A
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US1525426A
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US1585885A
Cited
US1931777A
Cited
US2043453A
Cited
US1950121A
Cited
US1922954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |