Patent US2468490A successfully refreshed from Google Patents.
US2468490A
Expired / Lapsed
US
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Pipe cleaning power cable feeder
Assignee: Individual
•
Filing: 1945-03-15
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Granted: 1949-04-26
•
Expires: 1965-03-15
Abstract
No abstract record available.
Inventors
- 👤 Joseph John Di
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:34
CPC Classifications
E; E03; E03F; E03F9/00; E03F9/002; E03F9/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1751415A
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US1722512A
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US1912525A
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US2037103A
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US2111527A
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US2201733A
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US2282600A
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US2223005A
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US2267493A
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US2320309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-25 | 1952-10-25 | 1953-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-25 | 1956-10-25 | 1957-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-25 | 1960-10-25 | 1961-04-26 | $7700.00 | Window Closed / Lapsed |