Patent US3239869A successfully refreshed from Google Patents.
US3239869A
Expired / Lapsed
US
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Magnetically held lint clearer rolls
Assignee: Nitto Boseki Co Ltd
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Filing: 1963-06-17
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Granted: 1966-03-15
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Expires: 1983-06-17
Abstract
No abstract record available.
Inventors
- 👤 Komatsu Yonezo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:28
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/18; D01H5/60; D01H5/64; Y; Y10; Y10S; Y10S100/00; Y10S100/917
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
153 words
A LINT CLEARER COMPRISING A NON-MAGNETIC, RIGID, PERFORATED TUBULAR BODY HAVING AN EQUAL OUTER DIAMETER THROUGHOUT ITS LENGTH; A CYLINDRICAL MAGNET HOUSED IN SAID BODY; A PAIR OF CYLINDRICAL POLE PIECES HOUSED IN SAID BODY IN CONTACT WITH EACH POLE OF SAID MAGNET FOR REDIRECTING THE LINES OF FLUX EMANATING FROM EACH POLE OF THE MAGNET TO A DIRECTION TRANSVERSE OF THE AXIS OF SAID TUBULAR BODY, THE COMBINED AXIAL LENGTH OF SAID MAGNET AND SAID POLE PIECES BEING SUBSTANTIALLY LESS THAN THAT OF SAID BODY; A PLUG MEMBER TIGHTLY FITTED IN THE OPPOSITE ENDS OF THE BODY; A SHANK INTEGRAL WITH AND EXTENDING OUT FROM EACH OF SAID PLUG MEMBERS, THE FREE END OF EACH OF SAID SHANKS ENGAGING A CORRESPONDING POLE PIECE TO URGE SAID POLE PIECES INTO A TIGHT FACE-TO-FACE CONTACT WITH SAID MAGNET; AND A COVERING OF SOFT, RESILIENT MATERIAL COVERING SUBSTANTIALLY THE ENTIRE PERIPHERAL SURFACE OF THE BODY.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |