Patent US1878605A successfully refreshed from Google Patents.
US2761067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-component photometric analysis
Assignee: EIDP Inc
•
Filing: 1953-01-26
•
Granted: 1956-08-28
•
Expires: 1973-01-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Daniel J Troy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:10
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/314; G01N21/84; G01N21/85
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
IN THE PHOTOMETRIC ANALYSIS OF SAMPLES CONSISTING OF AN ANALYZED COMPONENT ADMIXED WITH ONE INTERFERENT AND ANY NUMBER OF NON-INTERFERING COMPONENTS BY THE COMPARISION OF THE RATIOS OF INTENSITY OF RADIATION TRANSMITTED BY A MEASURING BEAM AND A COMPARISON BEAM, THE METHOD OF COMPENSATING FOR INTERFERENCE BETWEEN SAID ANALYZED COMPONENT AND SAID INTERFERENT COMPRISING EXAMINING THE SAMPLE WITH A MEASURING BEAM OF A FIRST WAVELENGTH PASSED THROUGH A FIRST THICKNESS OF SAID SAMPLE AND EXAMINING THE SAMPLE WITH A COMPARISON BEAM OF A SECOND WAVELENGTH PASSED THROUGH A SECOND THICKNESS OF SAID SAMPLE, SAID FIRST AND SECOND WAVELENGTHS BEING PRESELECTED SO THAT A SUBSTANTIAL DIFFERENCE IN THE RATIOS OF ABSORPTIVITY OF SAID ANALYZED COMPONENT TO THE ABSORPTIVITY OF SAID INTERFERENT EXISTS AT EACH OF SAID WAVELENGTHS AND SAID FIRST AND SECOND THICKNESS OF SAMPLE BEING PRESELECTED SO THAT THE ABSORBANCIES DUE TO SAID INTERFERENT IN SAID MEARURING AND COMPARISON BEAMS ARE MAINTAINED SUBSTANTIALLY EQUAL OVER THE RANGE OF SAID ANALYSIS.
Claim 2
Dependent Claim
160 words
IN THE PHOTOMETRIC ANALYSIS OF SAMPLES CONSISTING OF AN ANALYZED COMPONENT ADMIXED WITH ONE INTERFERENT AND ANY NUMBER OF NON-INTERFERING COMPONENTS BY THE COMPARISION OF THE RATIOS OF INTENSITY OF RADIATION TRANSMITTED BY A MEASURING BEAM AND A COMPARISON BEAM, THE METHOD OF COMPENSATING FOR INTERFERENCE BETWEEN SAID ANALYZED COMPONENT AND SAID INTERFERENT COMPRISING EXAMINING THE SAMPLE WITH A MEASURING BEAM OF A FIRST WAVELENGTH PASSED THROUGH A FIRST THICKNESS OF SAID SAMPLE AND EXAMINING THE SAMPLE WITH A COMPARISON BEAM OF A SECOND WAVELENGTH PASSED THROUGH A SECOND THICKNESS OF SAID SAMPLE, SAID FIRST AND SECOND WAVELENGTHS BEING PRESELECTED SO THAT A SUBSTANTIAL DIFFERENCE IN THE RATIOS OF ABSORPTIVITY OF SAID ANALYZED COMPONENT TO THE ABSORPTIVITY OF SAID INTERFERENT EXISTS AT EACH OF SAID WAVELENGTHS AND SAID FIRST AND SECOND THICKNESS OF SAMPLE BEING PRESELECTED SO THAT THE ABSORBANCIES DUE TO SAID INTERFERENT IN SAID MEARURING AND COMPARISON BEAMS ARE MAINTAINED SUBSTANTIALLY EQUAL OVER THE RANGE OF SAID ANALYSIS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-28 | 1960-02-27 | 1960-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-28 | 1964-02-27 | 1964-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-28 | 1968-02-27 | 1968-08-28 | $7700.00 | Window Closed / Lapsed |