Patent US1195808A successfully refreshed from Google Patents.
Patent US2657506A successfully refreshed from Google Patents.
US2657506A
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US
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Pipeline cleaning and polishing device
Assignee: Sunoco Inc
•
Filing: 1952-01-15
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Granted: 1953-11-03
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Expires: 1972-01-15
Abstract
No abstract record available.
Inventors
- 👤 Raymond F Hadley
- 👤 James G Daugherty
- 👤 Frank A Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:25
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/053; B08B9/055; B08B9/0553; B24; B24B; B24B33/00; B24B33/08; B24B33/084; B24B5/00; B24B5/36; B24B5/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US971042A
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US934491A
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US1180230A
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US1898786A
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US1908339A
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US1966819A
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US2028779A
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US2118720A
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US2328093A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |