Methods Patents (Class 53/396)
- Printing or protective coating (Class 53/411)
- Package opening device (e.g., tear strip) (Class 53/412)
- Handle (Class 53/413)
- Binding string (Class 53/414)
- Strip, stamp, nonencircling label, or space filler (Class 53/415)
- Fastening or sealing (Class 53/416)
- For preformed receptacle with separate closure (Class 53/420)
- Forming a pocket or depression in cover material by applying heat or pressure (e.g., stretch forming) (Class 53/453)
- Making a pocket in web material by folding and side sealing (e.g., flat bag making) (Class 53/455)
- Forming three-dimensional receptacle from web or blank (Class 53/456)
- Opening or setting up collapsed, preformed receptacle (Class 53/457)