Boat propellor security device
US4257247A · kind A · utility
16Cited by
3References
10Claims
0Family size
Inventor
Key dates
| Filing date | Aug 7, 1978 |
| Grant date | Mar 24, 1981 |
| Priority date | — |
| Expiry date | Aug 7, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/5867
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A security device for a boat propellor that is retained by a releasable lock to a propellor shaft has been developed and is disclosed as including cover means to prevent access to the releasable lock on the propellor shaft, and means for releasably retaining the cover means to the propellor to prevent unauthorized removal thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.