Patent US6168126B1 successfully refreshed from Google Patents.
US3308523A
Expired / Lapsed
US
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Reinforced expansible sleeve and method of manufacture
Assignee: Mount Hope Machinery Ltd
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Filing: 1964-12-21
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Granted: 1967-03-14
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Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 Allan J Ivester
- 👤 George P Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:11
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/30; B29C70/32; D; D01; D01H; D01H5/00; D01H5/18; D01H5/70; D01H5/74; D01H5/80
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
114 words
A REINFORCED EXPANSIBLE ANNULAR CYLINDRICAL SLEEVE ELEMENT FOR COVERING A ROLL, COMPRISING AN ANNULAR HELICAL COIL OF REINFORCING CORD HAVING A COATING OF UNIFORM THICKNESS OF AN ELASTOMERIC MATERIAL, THE TURNS OF SAID COIL ABUTTING ONE ANOTHER AXIALLY TO SPACE THE ADJACENT TURNS OF SAID CORD UNIFORMLY APART, SAID COIL HAVING AN INTERNAL DIAMETER EQUAL TO THAT OF THE SLEEVE ELEMENT, AND AN ANNULAR BODY OF MOLDED ELASTOMERIC MATERIAL EXTENDING CIRCUMFERENTIALLY ABOUT THE RADIALLY-OUTER SURFACE OF SAID COIL TO FORM A CYLINDRICAL OUTER SLEEVE SURFACE, SAID BODY CLOSELY COVERING AND BEING BONDED TO SAID COATING, THE MATERIAL OF SAID COATING HAVING A SUBSTANTIALLY LOWER COEFFICIENT OF SURFACE FRICTION THAN THE MATERIAL OF SAID BODY.
References Cited (Backward Citations)
US111449A
Cited
US125787A
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US271567A
Cited
US2199197A
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US2525196A
Cited
US2779976A
Cited
US3141491A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |