US3552864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid receiving cells for analytical instruments
Assignee: Rolls Royce Power Engineering PLC
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Filing: 1967-11-21
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Granted: 1971-01-05
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Expires: 1987-11-21
Abstract
Abstract A CELL FOR RECEIVING LIQUID FOR USE IN ANALYTICAL INSTRUMENTS OF THE KIND IN WHICH THE PROPERTY OF A LIQUID TO ABSORB RADIATION IS MADE USE OF TO DETERMINE THE COMPOSITION OF THE LIQUID, COMPRISING TWO WINDOWS OF MATERIAL TRANSPARENT TO THE RADIATION TO BE USED AND, LOCATED IN SPACED RELATION TO DEFINE A SPACE THEREBETWEEN FOR THE FLOW OF LIQUID TO BE ANALYSED, AND MEANS DEFINING A GROOVE ON THE SURFACE BOUNDING THE SPACE OF AT LEAST ONE OF SAID WINDOWS TO THEREBY PROVIDE AN ADDITIONAL PATH FOR THE SAID FLOW OF LIQUID BETWEEN INLET AND OUTLET MEANS.
Inventors
- 👤 John Shields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:27
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/01; G01N21/03; G01N21/05; G01N2021/0346
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |