Patent US1913176A successfully refreshed from Google Patents.
Patent US2059808A successfully refreshed from Google Patents.
US2059808A
Expired / Lapsed
US
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Fluid pressure regulator
Assignee: ROBUELL Co
•
Filing: 1932-11-03
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Granted: 1936-11-03
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Expires: 1952-11-03
Abstract
No abstract record available.
Inventors
- 👤 Braxton L Robart
- 👤 Earl P Buell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:18
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/10; G05D16/101; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2703; Y10T137/7722; Y10T137/7771; Y10T137/7781; Y10T137/7793; Y10T137/7801; Y10T137/7805; Y10T137/7832; Y10T137/7837; Y10T137/7838; Y10T137/7846
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-11-03 | 1940-05-04 | 1940-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-11-03 | 1944-05-04 | 1944-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-11-03 | 1948-05-04 | 1948-11-03 | $7700.00 | Window Closed / Lapsed |