US2959798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe line cleaner
Assignee: Champlin Oil & Refining Co
•
Filing: 1958-03-24
•
Granted: 1960-11-15
•
Expires: 1978-03-24
Abstract
No abstract record available.
Inventors
- 👤 Kenneth C Cribley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:35
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/053; B08B9/055; B08B9/0553; F; F16; F16L; F16L2101/00; F16L2101/10; F16L2101/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE128190C
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DE225827C
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US597421A
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US1193005A
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US858525A
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DE341023C
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US1377537A
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US2641010A
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US2622255A
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DK11877A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |