US3115246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Core for pressure-sensitive adhesive tape
Assignee: 3M Co
•
Filing: 1960-09-19
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Granted: 1963-12-24
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Expires: 1980-09-19
Abstract
No abstract record available.
Inventors
- 👤 Leslie G Wicklund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:05
CPC Classifications
B; B65; B65H; B65H81/00; B65H81/06; B65H81/08; B31; B31C; B31C3/00; B65H75/00; B65H75/02; B65H75/04; B65H75/08; B65H75/10; B65H2701/00; B65H2701/30; B65H2701/37; B65H2701/377
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
73 words
A ROLL OF TAPE COMPRISING AN ELONGATED PIECE OF PRESSURE-SENSITIVE ADHESIVE SHEET MATERIAL CONVOLUTELY WOUND, ADHESIVE SIDE IN, ON A CORE AND COMPLETELY REMOVABLE THEREFROM AT NORMAL SPEEDS SO THAT THE LAP NEAREST THE CORE DISPLAYS SUBSTANTIALLY THE SAME ADHESIVE CHARACTERISTICS AS THE REMAINDER OF THE PIECE, SAID CORE COMPRISING IN COMBINATION AN ANNULAR READILY DELAMINABLE BODY HAVING FIRMLY ADHERED TO THE RADIALLY OUTER SURFACE THEREOF A FIRST STRIP OF TOUGH DELAMINATION-RESISTANT SHEET
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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) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |