Swim fin
US4869696A · kind A · utility
36Cited by
5References
8Claims
0Family size
Inventor
Key dates
| Filing date | Dec 15, 1988 |
| Grant date | Sep 26, 1989 |
| Priority date | — |
| Expiry date | Dec 15, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B31/11
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A swim fin having a rigid blade that has the center portion of its leading edge pivotally attached to two beams which project forwardly from the foot pocket. The rigid blade pivots freely for part of its angular movement. The swim fin is designed not to snag seaweed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.