US3015544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing a chemical blank sample
Assignee: Milton Roy LLC
•
Filing: 1958-05-28
•
Granted: 1962-01-02
•
Expires: 1978-05-28
Abstract
No abstract record available.
Inventors
- 👤 Jr George E Shaffer
- 👤 Jr George W Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:46
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/27; G01N21/274; G01N21/278; Y; Y10; Y10T; Y10T436/00; Y10T436/10; Y10T436/108331; Y10T436/109163
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A PROCEDURE WHEREIN A TEST SAMPLE AND A BLANK SAMPLE ARE PROVIDED FOR OPTICAL COMPARISON, THE METHOD OF PREPARING SAID PLANK SAMPLE WHICH COMPRISES SEQUENTIALLY MIXING A PLURALITY OF REAGENTS IN DEFINED AMOUNT AND SEQUENCE, SAID REAGENTS COMPRISING A FIRST REAGENT REACTIVE WITH A UNIQUE COMPONENT OF A FLUID MEDIUM TO RESULT IN AN OPTICAL EFFECT, AND A SECOND REAGENT EFFECTIVE TO SHORT-STOP REACTION BETWEEN SAID REAGENT AND SAID COMPONENT, THE SEQUENCE OF MIXING BEING SUCH THAT SAID SECOND REAGENT IS INTRODUCED SUBSEQUENT TO SAID FIRST REAGENT; AND THEREAFTER MIXING THE RESULTING MIXTURE OF REAGENTS WITH AN ALIQUOT PORTION OF FLUID MEDIUM TO BE ANALYZED FOR SAID UNIQUE COMPONENT.
Claim 2
Dependent Claim
110 words
IN A PROCEDURE WHEREIN A TEST SAMPLE AND A BLANK SAMPLE ARE PROVIDED FOR OPTICAL COMPARISON, THE METHOD OF PREPARING SAID PLANK SAMPLE WHICH COMPRISES SEQUENTIALLY MIXING A PLURALITY OF REAGENTS IN DEFINED AMOUNT AND SEQUENCE, SAID REAGENTS COMPRISING A FIRST REAGENT REACTIVE WITH A UNIQUE COMPONENT OF A FLUID MEDIUM TO RESULT IN AN OPTICAL EFFECT, AND A SECOND REAGENT EFFECTIVE TO SHORT-STOP REACTION BETWEEN SAID REAGENT AND SAID COMPONENT, THE SEQUENCE OF MIXING BEING SUCH THAT SAID SECOND REAGENT IS INTRODUCED SUBSEQUENT TO SAID FIRST REAGENT; AND THEREAFTER MIXING THE RESULTING MIXTURE OF REAGENTS WITH AN ALIQUOT PORTION OF FLUID MEDIUM TO BE ANALYZED FOR SAID UNIQUE COMPONENT.
References Cited (Backward Citations)
US1919858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |