US3563781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of providing retro-reflective stripes on cylindrical surfaces
Assignee: 3M Co
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Filing: 1967-12-11
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Granted: 1971-02-16
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Expires: 1987-12-11
Abstract
Abstract A METHOD OF MARKING CANS WITH A REFLEX-REFLECTING STRIPE TO AFFORD MORE RELIABLE SORTING OF CANS IN A CANNERY. THE METHOD COMPRISES OF THE APPLICATION OF A THIN NARROW STRIPE OF A SOLVENT-CONTAINING ADHESIVE COMPOSITION TO THE CAN SURFACE, DRYING THE STRIPE TO DEVELOP A HIGHLY TACKY STRIPE ON THE CAN, APPLYING A MONOLAYER OF GLASS SPHERES TO THE STRIPE TO HOLD THE SPHERES ON THE CAN, AND PERMITTING A FURTHER DRYING OF THE COMPOSITION TO A TACK-FREE STATE. THE SOFTENING POINT OF THE COMPOSITION IN THE TACK-FREE STATE SHOULD BE AT LEAST 260*F.
Inventors
- 👤 Melvin L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:34
CPC Classifications
B; B41; B41F; B41F17/00; B41F17/08; B41F17/14; B65; B65B; B65B61/00; B65B61/26; B65D; B65D25/00; B65D25/34
Claims Analysis
Total Claims: 0
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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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |