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Legal status
Patent not validated
| (51) | INT.CL. | G02B 5/122 |
| (11) | Number of the document | 2350710 |
| (13) | Kind of document | T |
| (96) | European patent application number | 09822714.3 |
| Date of filing the European patent application | 2009-10-22 | |
| (97) | Date of publication of the European application | 2011-08-03 |
| (45) | Date of publication and mention of the grant of the patent | 2020-09-16 |
| (46) | Date of publication of the claims translation |
| (86) | Number | PCT/US2009/061699 |
| Date | 2009-10-22 |
| (87) | Number | WO 2010/048416 |
| Date | 2010-04-29 |
| (30) | Number | Date | Country code |
| 107586 P | 2008-10-22 | US |
| (72) |
SMITH, Kenneth, L., US
IMBERTSON, James, R., US
KELLIHER, John, C., US
WORRELL, John, A., US
ELLINGSTAD, Sidney, A., US
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| (73) |
3M Innovative Properties Company,
3M Center P.O.Box 33427, St. Paul, MN 55133-3427,
US
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| (54) | RETROREFLECTIVE SHEETING |
| RETROREFLECTIVE SHEETING |