| Number | Name | Date | Kind |
|---|---|---|---|
| 1679621 | Myers | Aug 1928 | |
| 1732322 | Wilson et al. | Oct 1929 | |
| 2300473 | Van Winkle | Nov 1942 | |
| 2563352 | Morse | Aug 1951 | |
| 2617549 | Egger | Nov 1952 | |
| 2641402 | Bruun | Jun 1953 | |
| 3082900 | Goodman | Mar 1963 | |
| 3085730 | Fibish | Apr 1963 | |
| 3203611 | Anderson et al. | Aug 1965 | |
| 3237834 | Davis et al. | Mar 1966 | |
| 3443715 | Edwards | May 1969 | |
| 3456860 | Janninck | Jul 1969 | |
| 3797369 | Amberg | Mar 1974 | |
| 3908523 | Shikaya | Sep 1975 | |
| 4080880 | Shikaya | Mar 1978 | |
| 4146660 | Hall et al. | Mar 1979 | |
| 4993580 | Smith | Feb 1991 | |
| 5092485 | Lee | Mar 1992 | |
| 5145107 | Silver et al. | Sep 1992 | |
| 5205473 | Coffin, Sr. | Apr 1993 | |
| 5222656 | Carlson | Jun 1993 | |
| 5226585 | Varano | Jul 1993 | |
| 5267685 | Sorensen | Dec 1993 | |
| 5385260 | Gatcomb | Jan 1995 | |
| 5460323 | Titus | Oct 1995 |
| Entry |
|---|
| Bakker, M., The Wiley Encyclopedia of Packaging Technology, John Wiley & Sons, Inc., pp. 66-69 (1986). |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 48620 | Jan 1996 |