US3296446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for determining the shape of colloidal particles using light scattering
Assignee: Individual
•
Filing: 1963-12-31
•
Granted: 1967-01-03
•
Expires: 1983-12-31
Abstract
No abstract record available.
Inventors
- 👤 Heller Wilfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:06
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/02; G01N15/0205
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
85 words
AN APPARATUS FOR DETERMINING PARTICLE SHAPES IN A SOLUTION COMPRISING: (A) MEANS PROVIDING A SINGLE THIN LAYER OF THE SOLUTION; (B) MEANS FOR IMPARTING ROTARY STREAMING MOVEMENT TO SAID THIN LAYER; (C) MEANS PROVIDING AN INTENSE INCIDENT RADIANT ENERGY BEAM DIRECTED TO PASS THROUGH SAID STREAMING THIN LAYER AND BECOME SCATTERED BY THE PARTICLES THEREIN; AND (D) RADIANT ENERGY RESPONSIVE MEANS FOR MEASUREMENT OF THE RADIANT ENERGY SCATTERING IN A DIRECTION NORMAL TO THE INCIDENT BEAM WHEREBY THE SIZE OF SAID PARTICLES MAY BE DETERMINED.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |