US3783117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measurements of particles and molecules
Assignee: General Electric Co
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Filing: 1972-10-20
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Granted: 1974-01-01
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Expires: 1992-10-20
Abstract
Abstract PARTICLES TO BE MEASURED AND ANALYZED ARE PLACED IN SOLUTION IN A LIGHT TRANSMISSIVE CELL. A SHAPED, FLAT BEAM IS PASSED INTO THE CELL. PARTICLES ARE URGED THROUGH THE BEAM AND THEIR PASSAGE CAUSES TIME VARIATIONS IN THE INTENSITY OF LIGHT SCATTERED THEREBY. THE SCATTERED LIGHT IS COLLECTED AND TRANSFORMED INTO AN ELECTRICAL SIGNAL. SIGNAL IS CORRELATED WITH ITSELF AS A TIME VARYING FUNCTION AND THE ELECTROPHORETIC MOBILITY OF THE PARTICLES IS DETERMINED.
Inventors
- 👤 C Bean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:11
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/447; G01N27/44704; G01N27/44717; G01N27/44721; Y; Y10; Y10S; Y10S435/00; Y10S435/808
Claims Analysis
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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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |