Patent US2703423A successfully refreshed from Google Patents.
US2703423A
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US
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Line cleaner having rubber rollers to squeeze the line
Assignee: CHARLES E MUNN
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Filing: 1949-10-20
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Granted: 1955-03-08
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Expires: 1969-10-20
Abstract
No abstract record available.
Inventors
- 👤 Gerald R Hunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:01
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US297260A
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US741911A
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US1716229A
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US1680068A
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US1815238A
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US1896415A
Cited
US2223860A
Cited
US2424046A
Cited
US2565693A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-07 | 1958-09-06 | 1959-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-07 | 1962-09-06 | 1963-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-07 | 1966-09-06 | 1967-03-08 | $7700.00 | Window Closed / Lapsed |