Patent US2245679A successfully refreshed from Google Patents.
US2245679A
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US
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Sampling device for pipe lines
Assignee: Standard Oil Development Co
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Filing: 1938-02-18
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Granted: 1941-06-17
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Expires: 1958-02-18
Abstract
No abstract record available.
Inventors
- 👤 Frank B Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:53
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/20; G01N1/2035; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8326; Y10T137/8593; Y10T137/87265; Y10T137/8733
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) | 1944-06-16 | 1944-12-16 | 1945-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-06-16 | 1948-12-16 | 1949-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-06-16 | 1952-12-16 | 1953-06-17 | $7700.00 | Window Closed / Lapsed |