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US3481671A
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Apparatus and method for obtaining optical rotatory dispersion measurements
Assignee: Melpar Inc
•
Filing: 1966-07-27
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Granted: 1969-12-02
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Expires: 1986-07-27
Abstract
No abstract record available.
Inventors
- 👤 Seymour S West
- 👤 John W Liskowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:13
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/21
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2731875A
Cited
US2861493A
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US2928310A
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US2877683A
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US3164662A
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US3155762A
Cited
US3080788A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |