| Withdrawn Patents |
| Grant Date | Patent Number |
| 1972-08-08 | 3,681,793 |
| 1972-08-08 | 3,681,809 |
| 1972-08-08 | 3,681,814 |
| 1972-08-08 | 3,681,816 |
| 1972-08-08 | 3,681,827 |
| 1972-08-08 | 3,681,847 |
| 1972-08-08 | 3,681,848 |
| 1972-08-08 | 3,681,854 |
| 1972-08-08 | 3,681,858 |
| 1972-08-08 | 3,681,861 |
| 1972-08-08 | 3,681,864 |
| 1972-08-08 | 3,681,868 |
| 1972-08-08 | 3,681,880 |
| 1972-08-08 | 3,681,884 |
| 1972-08-08 | 3,681,894 |
| 1972-08-08 | 3,681,902 |
| 1972-08-08 | 3,681,921 |
| 1972-08-08 | 3,681,922 |
| 1972-08-08 | 3,681,924 |
| 1972-08-08 | 3,681,935 |
| 1972-08-08 | 3,681,945 |
| 1972-08-08 | 3,681,968 |
| 1972-08-08 | 3,681,971 |
| 1972-08-08 | 3,681,981 |
| 1972-08-08 | 3,681,989 |
| 1972-08-08 | 3,681,999 |
| 1972-08-08 | 3,682,000 |
| 1972-08-08 | 3,682,002 |
| 1972-08-08 | 3,682,004 |
| 1972-08-08 | 3,682,007 |
| 1972-08-08 | 3,682,009 |
| 1972-08-08 | 3,682,011 |
| 1972-08-08 | 3,682,016 |
| 1972-08-08 | 3,682,022 |
| 1972-08-08 | 3,682,035 |
| 1972-08-08 | 3,682,037 |
| 1972-08-08 | 3,682,039 |
| 1972-08-08 | 3,682,045 |
| 1972-08-08 | 3,682,059 |
| 1972-08-08 | 3,682,061 |
| 1972-08-08 | 3,682,081 |
| 1972-08-08 | 3,682,099 |
| 1972-08-08 | 3,682,111 |
| 1972-08-08 | 3,682,124 |
| 1972-08-08 | 3,682,155 |
| 1972-08-08 | 3,682,169 |
| 1972-08-08 | 3,682,170 |
| 1972-08-08 | 3,682,178 |
| 1972-08-08 | 3,682,229 |
| 1972-08-08 | 3,682,248 |
| 1972-08-08 | 3,682,255 |
| 1972-08-08 | 3,682,257 |
| 1972-08-08 | 3,682,264 |
| 1972-08-08 | 3,682,285 |
| 1972-08-08 | 3,682,287 |
| 1972-08-08 | 3,682,309 |
| 1972-08-08 | 3,682,317 |
| 1972-08-08 | 3,682,319 |
| 1972-08-08 | 3,682,326 |
| 1972-08-08 | 3,682,330 |
| 1972-08-08 | 3,682,357 |
| 1972-08-08 | 3,682,359 |
| 1972-08-08 | 3,682,368 |
| 1972-08-08 | 3,682,385 |
| 1972-08-08 | 3,682,406 |
| 1972-08-08 | 3,682,416 |
| 1972-08-08 | 3,682,420 |
| 1972-08-08 | 3,682,427 |
| 1972-08-08 | 3,682,428 |
| 1972-08-08 | 3,682,429 |
| 1972-08-08 | 3,682,430 |
| 1972-08-08 | 3,682,441 |
| 1972-08-08 | 3,682,445 |
| 1972-08-08 | 3,682,450 |
| 1972-08-08 | 3,682,452 |
| 1972-08-08 | 3,682,493 |
| 1972-08-08 | 3,682,496 |
| 1972-08-08 | 3,682,499 |
| 1972-08-08 | 3,682,510 |
| 1972-08-08 | 3,682,517 |
| 1972-08-08 | 3,682,520 |
| 1972-08-08 | 3,682,535 |
| 1972-08-08 | 3,682,537 |
| 1972-08-08 | 3,682,555 |
| 1972-08-08 | 3,682,568 |
| 1972-08-08 | 3,682,573 |
| 1972-08-08 | 3,682,581 |
| 1972-08-08 | 3,682,587 |
| 1972-08-08 | 3,682,600 |
| 1972-08-08 | 3,682,607 |
| 1972-08-08 | 3,682,612 |
| 1972-08-08 | 3,682,615 |
| 1972-08-08 | 3,682,624 |
| 1972-08-08 | 3,682,627 |
| 1972-08-08 | 3,682,657 |
| 1972-08-08 | 3,682,658 |
| 1972-08-08 | 3,682,674 |
| 1972-08-08 | 3,682,691 |
| 1972-08-08 | 3,682,710 |
| 1972-08-08 | 3,682,728 |
| 1972-08-08 | 3,682,732 |
| 1972-08-08 | 3,682,735 |
| 1972-08-08 | 3,682,737 |
| 1972-08-08 | 3,682,754 |
| 1972-08-08 | 3,682,757 |
| 1972-08-08 | 3,682,758 |
| 1972-08-08 | 3,682,765 |
| 1972-08-08 | 3,682,769 |
| 1972-08-08 | 3,682,773 |
| 1972-08-08 | 3,682,787 |
| 1972-08-08 | 3,682,801 |
| 1972-08-08 | 3,682,810 |
| 1972-08-08 | 3,682,818 |
| 1972-08-08 | 3,682,822 |
| 1972-08-08 | 3,682,832 |
| 1972-08-08 | 3,682,837 |
| 1972-08-08 | 3,682,843 |
| 1972-08-08 | 3,682,851 |
| 1972-08-08 | 3,682,852 |
| 1972-08-08 | 3,682,855 |
| 1972-08-08 | 3,682,862 |
| 1972-08-08 | 3,682,878 |
| 1972-08-08 | 3,682,882 |
| 1972-08-08 | 3,682,885 |
| 1972-08-08 | 3,682,890 |
| 1972-08-08 | 3,682,915 |
| 1972-08-08 | 3,682,931 |
| 1972-08-08 | 3,682,937 |
| 1972-08-08 | 3,682,940 |
| 1972-08-08 | 3,682,955 |
| 1972-08-08 | 3,682,958 |
| 1972-08-08 | 3,682,972 |
| 1972-08-08 | 3,682,974 |
| 1972-08-08 | 3,682,977 |
| 1972-08-08 | 3,682,982 |
| 1972-08-08 | 3,682,987 |
| 1972-08-08 | 3,682,994 |
| 1972-08-08 | 3,682,998 |
| 1972-08-08 | 3,683,011 |
| 1972-08-08 | 3,683,012 |
| 1972-08-08 | 3,683,021 |
| 1972-08-08 | 3,683,055 |
| 1972-08-08 | 3,683,063 |
| 1972-08-08 | 3,683,064 |
| 1972-08-08 | 3,683,075 |
| 1972-08-08 | 3,683,077 |
| 1972-08-08 | 3,683,079 |
| 1972-08-08 | 3,683,097 |
| 1972-08-08 | 3,683,099 |
| 1972-08-08 | 3,683,109 |
| 1972-08-08 | 3,683,119 |
| 1972-08-08 | 3,683,124 |
| 1972-08-08 | 3,683,125 |
| 1972-08-08 | 3,683,157 |
| 1972-08-08 | 3,683,158 |
| 1972-08-08 | 3,683,169 |
| 1972-08-08 | 3,683,170 |
| 1972-08-08 | 3,683,204 |
| 1972-08-08 | 3,683,265 |
| 1972-08-08 | 3,683,286 |
| 1972-08-08 | 3,683,291 |
| 1972-08-08 | 3,683,292 |
| 1972-08-08 | 3,683,311 |
| 1972-08-08 | 3,683,327 |
| 1972-08-08 | 3,683,333 |
| 1972-08-08 | 3,683,338 |
| 1972-08-08 | 3,683,341 |
| 1972-08-08 | 3,683,375 |
| 1972-08-08 | 3,683,377 |
| 1972-08-08 | 3,683,388 |
| 1972-08-08 | 3,683,395 |
| 1972-08-08 | 3,683,400 |