Issued Patents 1989
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885196 | Three-layer cross-laminated film with foam core made by counter-rotating dies | — | 1989-12-05 |
| 4860267 | Method for providing a signal to prepare waste materials for collection and waste containers incorporating an alarm device | Eric A. St. Phillips | 1989-08-22 |
| 4850946 | Draw tape bag with two single wrap around draw tapes and method of manufacture | Kevin Broderick, Vernon C. Catchman, Shirley K. Johnston, Robert H. Olson, Donald Stell | 1989-07-25 |
| 4842420 | Variable-width draw tape for thermoplastic bags | Daniel J. DiBiasi | 1989-06-27 |
| 4842421 | Thermoplastic draw tape bag with tacky closure surface | Edward M. Bullard | 1989-06-27 |
| 4832507 | Thermoplastic draw tape bag held closed by microencapsulated adhesive | — | 1989-05-23 |
| 4813794 | Thermoplastic draw tape bag with tacky tape | — | 1989-03-21 |
| 4808150 | Oven-heated hot wheel sealing apparatus | Clyde C. Tendick | 1989-02-28 |
| 4795412 | Apparatus for forming a hem in a moving web of film | — | 1989-01-03 |
| 4795599 | Screw extruder and a method of operation thereof | — | 1989-01-03 |