U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Non-intrusive infant security system

Patent 5047750 Issued on September 10, 1991. Estimated Expiration Date: Icon_subject March 9, 2010. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3696379

3777086

Perimeter alarm apparatus
Patent #: 4136338
Issued on: 01/23/1979
Inventor: Antenore

Shoplifting alarm system and method
Patent #: 4336531
Issued on: 06/22/1982
Inventor: Kincaid

Electronic detection systems and methods
Patent #: 4471343
Issued on: 09/11/1984
Inventor: Lemelson

Apparatus for detecting unauthorized egress by patient from position of confinement
Patent #: 4536755
Issued on: 08/20/1985
Inventor: Holzgang ,   et al.

Portable, disposable warning device for detecting urine-wet undergarments
Patent #: 4539559
Issued on: 09/03/1985
Inventor: Kelly ,   et al.

Bed departure detection system
Patent #: 4539560
Issued on: 09/03/1985
Inventor: Fleck ,   et al.

Passageway selective detector mechanism and system
Patent #: 4555696
Issued on: 11/26/1985
Inventor: Brown

Personnel security system
Patent #: 4682155
Issued on: 07/21/1987
Inventor: Shirley

More ...

Inventor

Application

No. 491105 filed on 03/09/1990

US Classes:

340/573.4, House arrest system, wandering, or wrong place340/686.6Proximity or distance

Examiners

Primary: Swann, III, Glen R.
Assistant: Mullen, Thomas J. Jr.

Attorney, Agent or Firm

International Class

G08B 023/00

Abstract

A security system for infants having a tuned fixed frequency coil affixed to an infant's diaper. A detector for detecting when the tuned coil is in physical proximity or the absence of physical proximity to the detector. An alarm system is in communication with the detector to indicate when the coil is detected by the change in proximity of the infant by the monitoring of the location of the coil.

PatentsPlus Images
Enhanced PDF formats
loading...
PatentsPlus: add to cart
PatentsPlus: add to cartSearch-enhanced full patent PDF image
$9.95more info
PatentsPlus: add to cart
PatentsPlus: add to cartIntelligent turbocharged patent PDFs with marked up images
$18.95more info
 
Sign InRegister
Username  
Password   
forgot password?