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US2922218A
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Pipe cleaning device
Assignee: Individual
•
Filing: 1957-03-27
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Granted: 1960-01-26
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Expires: 1977-03-27
Abstract
No abstract record available.
Inventors
- 👤 Lewis Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:34
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/021; F; F16; F16L; F16L2101/00; F16L2101/10; F16L2101/12; Y; Y10; Y10T; Y10T407/00; Y10T407/18; Y10T407/1805
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1478896A
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US2003629A
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US2074177A
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US2475514A
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US2471236A
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US2562136A
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US2551875A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |