Patent US1874293A successfully refreshed from Google Patents.
US1874293A
Expired / Lapsed
US
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Combination pressure regulating and shut-off valve
Assignee: Individual
•
Filing: 1930-02-03
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Granted: 1932-08-30
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Expires: 1950-02-03
Abstract
No abstract record available.
Inventors
- 👤 Hook Charles Howard
- 👤 Nathan L Mercur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:33
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0675; G05D16/0683; G05D16/0686; G05D16/20; G05D16/2093; G05D16/2095; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7761; Y10T137/7781; Y10T137/7782; Y10T137/7793; Y10T137/7809; Y10T137/782; Y10T137/7821
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) | 1935-08-30 | 1936-02-29 | 1936-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-08-30 | 1940-02-29 | 1940-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-08-30 | 1944-02-29 | 1944-08-30 | $7700.00 | Window Closed / Lapsed |