US3475102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring assembly for spectrophotometric analyzing apparatus
Assignee: GlaxoSmithKline LLC
•
Filing: 1966-06-22
•
Granted: 1969-10-28
•
Expires: 1986-06-22
Abstract
No abstract record available.
Inventors
- 👤 Theodore J Larsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:11
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/502; G; G01; G01N; G01N21/00; G01N21/01; G01N21/03; B01L2300/00; B01L2300/04; B01L2300/041; B01L2300/042; B01L2300/08; B01L2300/0861; B01L2300/0867; B01L2400/00; B01L2400/06; B01L2400/0633; B01L3/508; B01L3/5082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A MIXING AND MEASURING ASSEMBLY FOR USE IN MAKING PHOTOMETRIC MEASUREMENTS INCLUDING IN COMBINATION: A RESERVOIR HAVING A NECK PORTION WITH AN OPENING THEREIN; A DISPLACEABLE CLOSURE MEANS TO SEALINGLY CLOSE SAID OPENING AND BEING SLIDEABLE ALONG SAID NECK PORTION INTO SAID RESERVOIR; A PIPETTE HAVING AN EXPOSED TUBE END CONTAINING A LIQUID SPECIMEN, WITH THE OTHER TUBE END BEING OPEN TO THE ATMOSPHERE, FROM WHICH SAID SPECIMEN IS INTRODUCED INTO SAID RESERVOIR; A HOLLOW MEASURING INSERT HAVING WALLS OF AN OPTICALLY CLEAWR MATERIAL PROVIDING A LIGHT PATH OF FIXED LENGTH THROUGH A LIQUID CONTAINED THEREIN; SAID MEANS CONNECTED TO SAID MEASURING INSERT TO SEALINGLY ENGAGE THE INNER SURFACE OF SAID NECK PORTION, WHEREUPON SAID RESERVOIR AND SAID MEASURING INSERT COME INTO FLUID COMMUNICATION AS SAID DISPLACEABLE CLOSURE MEANS IS URGED INWARDLY OF ITS SEALING ENGAGEMENT WITH SAID NECK PORTION OPENING AND INTO SAID RESERVOIR.
Claim 2
Dependent Claim
145 words
A MIXING AND MEASURING ASSEMBLY FOR USE IN MAKING PHOTOMETRIC MEASUREMENTS INCLUDING IN COMBINATION: A RESERVOIR HAVING A NECK PORTION WITH AN OPENING THEREIN; A DISPLACEABLE CLOSURE MEANS TO SEALINGLY CLOSE SAID OPENING AND BEING SLIDEABLE ALONG SAID NECK PORTION INTO SAID RESERVOIR; A PIPETTE HAVING AN EXPOSED TUBE END CONTAINING A LIQUID SPECIMEN, WITH THE OTHER TUBE END BEING OPEN TO THE ATMOSPHERE, FROM WHICH SAID SPECIMEN IS INTRODUCED INTO SAID RESERVOIR; A HOLLOW MEASURING INSERT HAVING WALLS OF AN OPTICALLY CLEAWR MATERIAL PROVIDING A LIGHT PATH OF FIXED LENGTH THROUGH A LIQUID CONTAINED THEREIN; SAID MEANS CONNECTED TO SAID MEASURING INSERT TO SEALINGLY ENGAGE THE INNER SURFACE OF SAID NECK PORTION, WHEREUPON SAID RESERVOIR AND SAID MEASURING INSERT COME INTO FLUID COMMUNICATION AS SAID DISPLACEABLE CLOSURE MEANS IS URGED INWARDLY OF ITS SEALING ENGAGEMENT WITH SAID NECK PORTION OPENING AND INTO SAID RESERVOIR.
References Cited (Backward Citations)
US2359736A
Cited
US1280194A
Cited
US2896502A
Cited
US3246559A
Cited
US3263554A
Cited
US3332316A
Cited
US3145876A
Cited
US3142719A
Cited
US3177706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |