Patent US1652171A successfully refreshed from Google Patents.
US1652171A
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Apparatus for drawing off gases and liquids from pressure systems
Assignee: Universal Oil Products Co
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Filing: 1923-08-16
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Granted: 1927-12-13
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Expires: 1943-08-16
Abstract
No abstract record available.
Inventors
- 👤 Lyman C Huff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:12
CPC Classifications
C; C10; C10G; C10G9/00; C10G9/06; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3009; Y10T137/3021; Y10T137/304; Y10T137/3052; Y10T137/3068; Y10T137/3071; Y10T137/7287; Y10T137/7358; Y10T137/7439; Y10T137/7722; Y10T137/7781
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) | 1930-12-12 | 1931-06-13 | 1931-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-12-12 | 1935-06-13 | 1935-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-12-12 | 1939-06-13 | 1939-12-13 | $7700.00 | Window Closed / Lapsed |