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US3699005A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and article for detecting the fertile period

Assignee: Individual
•
Filing: 1970-08-26
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Granted: 1972-10-17
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Expires: 1990-08-26
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Abstract

Abstract A NEW AND RAPID TEST METHOD IS PROVIDED FOR PREDICTING AND DETECTING THE FERTILE PERIOD OF THE FEMALE. THE METHOD INVOLVES A SIMPLE RAPID TEST FOR ALKALINE PHOSPHATASE ACTIVITY IN THE SALIVA OF THE FEMALE. IN THE METHOD THE FEMALE WETS A NOVEL TEST IMPLEMENT WITH HER SALIVA AND THE TEST IMPLEMENT WILL TURN A DETECTABLE BLUE COLOR IN ABOUT ONE MINUTE IF AN AMOUNT OF ALKALINE PHOSPHATASE IS PRESENT IN THE SALIVA SUFFICIENT TO CAUSE THE COLOR CHANGE. THIS AMOUNT OF ALKALINE PHOSPHATASE IS CONINCIDENT WITH THE ONSET OF THE FERTILE PERIOD OF THE FEMALE, AND EXTENDS FOR THE DURATION OF THE FERTILE PERIOD. THE NOVEL DRY TEST IMPLEMENT CONSISTS OF A DRY BIBULOUS MATERIAL WHICH HAS BEEN IMPREGNATED BEFORE DRYING WITH AN INDOXYL PHOSPHATE AND A BUFFER.

Inventors

  • 👤 Raymond O Foster

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 00:33
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/34; C12Q1/42

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-10-17 1976-04-17 1976-10-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-10-17 1980-04-17 1980-10-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-10-17 1984-04-17 1984-10-17 $7700.00 Window Closed / Lapsed

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