US3301040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic fraction collecting system for vapor phase chromatography
Assignee: Individual
•
Filing: 1965-10-20
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Granted: 1967-01-31
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Expires: 1985-10-20
Abstract
No abstract record available.
Inventors
- 👤 Eugene L Levy
- 👤 Leonard F Herk
- 👤 William H Stahl
- 👤 David M G Lawrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:40
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/02; G01N30/80; G01N30/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
APPARATUS FOR AUTOMATICALLY COLLECTING FRACTIONS SEPARATED FROM A MIXTURE BY CHROMATOGRAPHIC APPARATUS COMPRISING: (A) MEANS FOR DETECTING A PLURALITY OF FRACTIONS WHICH WERE SEPARATED FROM SAID MIXTURE BY SAID CHROMATOGRAPHIC APPARATUS AND PRODUCING A PLURALITY OF SIGNAL PEAKS CORRESPONDING RESPECTIVELY TO SAID FRACTIONS, (B) A PLURALITY OF COLLECTING MEANS FOR COLLECTING PREDETERMINED ONES OF SAID FRACTIONS, (C) MEANS FOR CONDUCTING SAID SEPARATED FRACTIONS TO SAID COLLECTING MEANS, AND (D) MEANS RESPONSIVE TO THE MAXIMA OF THE RESPECTIVE ONES OF SAID SIGNAL PEAKS FOR INITIATING THE APPLICATION OF SAID PREDETERMINED FRACTIONS CORRESPONDING TO SAID SIGNALS VIA SAID CONDUCTING MEANS TO PREDETERMINED ONES OF SAID COLLECTING MEANS, AND
Claim 2
Dependent Claim
106 words
APPARATUS FOR AUTOMATICALLY COLLECTING FRACTIONS SEPARATED FROM A MIXTURE BY CHROMATOGRAPHIC APPARATUS COMPRISING: (A) MEANS FOR DETECTING A PLURALITY OF FRACTIONS WHICH WERE SEPARATED FROM SAID MIXTURE BY SAID CHROMATOGRAPHIC APPARATUS AND PRODUCING A PLURALITY OF SIGNAL PEAKS CORRESPONDING RESPECTIVELY TO SAID FRACTIONS, (B) A PLURALITY OF COLLECTING MEANS FOR COLLECTING PREDETERMINED ONES OF SAID FRACTIONS, (C) MEANS FOR CONDUCTING SAID SEPARATED FRACTIONS TO SAID COLLECTING MEANS, AND (D) MEANS RESPONSIVE TO THE MAXIMA OF THE RESPECTIVE ONES OF SAID SIGNAL PEAKS FOR INITIATING THE APPLICATION OF SAID PREDETERMINED FRACTIONS CORRESPONDING TO SAID SIGNALS VIA SAID CONDUCTING MEANS TO PREDETERMINED ONES OF SAID COLLECTING MEANS, AND
References Cited (Backward Citations)
US2692820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |