Thin-walled plastic hat structure
US5713083A · kind A · utility
23Cited by
11References
7Claims
0Family size
Inventor
Key dates
| Filing date | Jan 21, 1997 |
| Grant date | Feb 3, 1998 |
| Priority date | — |
| Expiry date | Jan 21, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA42B3/14
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A one-piece, lightweight, molded plastic hat that comprises, in combination, a thin, molded plastic sheet forming a hat wall dome having an inner side, the sheet at the dome everywhere having thickness less than 3/16 inch; the sheet at the dome forming a corrugation having a local portion defining a U-shaped cross section; and a local plastic reinforcement sub-sheet formed to have U-shaped cross section matching that of the dome local portion, the sub-sheet fitting and adhesively bonded to the dome sheet local portion at the inner side of the hat dome.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.