Patent US2451781A successfully refreshed from Google Patents.
US3097928A
Expired / Lapsed
US
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Ultra-micro cuvette assembly
Assignee: COLEMAN INSTR Inc
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Filing: 1960-11-07
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Granted: 1963-07-16
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Expires: 1980-11-07
Abstract
No abstract record available.
Inventors
- 👤 John J J Staunton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:27
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/01; G01N21/03; G01N21/0303; Y; Y10; Y10S; Y10S435/00; Y10S435/808
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
IN AN ULTRA-MICRO CUVETTE ASSEMBLY FOR SPECTROPHOTOMERS AND THE LIKE, THE IMPROVEMENT WHICH COMPRISES A PLANE-PARALLEL SIDED FLAT-BOTTOMED CURVETTE, A CONTAINER FOR REMOVABLY HOLDING SAID CURVETTE, AND APERTURED MASK REMOVABLY MOUNTABLE ON SAID CONTAINER, A TOP-MOUNTED SUCTION TUBE REMOVABLY MOUNTABLE IN SAID CONTAINER AND VERTICALLY RECIPROCABLE BETWEEN THE INSIDE BOTTOM OF SAID CUVETTE AND A RAISED POSITION ABOVE THE BOTTOM, AND HORIZONTAL ORFICE MEANS AT THE LOWER END OF SAID TUBE, WHEREBY WHEN THE SUCTION TUBE IS LOWERED TO THE BOTTOM OF THE CUVETTE, THE SURFACE TENSION OF THE LIQUID MENISCUS IN THE CORNERS IS OVERCOME AND THE CUVETTE WILL BE DRAINED.
Claim 2
Dependent Claim
102 words
IN AN ULTRA-MICRO CUVETTE ASSEMBLY FOR SPECTROPHOTOMERS AND THE LIKE, THE IMPROVEMENT WHICH COMPRISES A PLANE-PARALLEL SIDED FLAT-BOTTOMED CURVETTE, A CONTAINER FOR REMOVABLY HOLDING SAID CURVETTE, AND APERTURED MASK REMOVABLY MOUNTABLE ON SAID CONTAINER, A TOP-MOUNTED SUCTION TUBE REMOVABLY MOUNTABLE IN SAID CONTAINER AND VERTICALLY RECIPROCABLE BETWEEN THE INSIDE BOTTOM OF SAID CUVETTE AND A RAISED POSITION ABOVE THE BOTTOM, AND HORIZONTAL ORFICE MEANS AT THE LOWER END OF SAID TUBE, WHEREBY WHEN THE SUCTION TUBE IS LOWERED TO THE BOTTOM OF THE CUVETTE, THE SURFACE TENSION OF THE LIQUID MENISCUS IN THE CORNERS IS OVERCOME AND THE CUVETTE WILL BE DRAINED.
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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |