Patent US3625652A successfully refreshed from Google Patents.
US3625652A
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Analysis of narcotics and amphetamines
Assignee: MARQUETTE SCHOOL OF MEDICINE I
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Filing: 1970-03-17
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Granted: 1971-12-07
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Expires: 1990-03-17
Abstract
Abstract APPARATUS AND METHODS FOR THE DETECTION OF NARCOTIC ANALGESICS AND AMPHETAMINES WHICH EMPLOY MACRORETICULAR HEADS OF STYRENE-DIVINYLBENZENE COPOLYMER TO ADSORB THE NARCOTIC ANALGESICS AND AMPHETAMINES FROM HUMAN URINE IN A NNONIONIC MECHANISM.
Inventors
- 👤 James M Fujimoto
- 👤 Richard I H Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:08
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/28; G01N1/40; G01N1/405; G01N30/00; G01N33/00; G01N33/48; G01N33/50; G01N33/94; G01N33/946; G01N33/9486; G01N33/483; G01N33/487; G01N33/493; Y; Y10; Y10S; Y10S436/00; Y10S436/901; Y10T; Y10T436/00; Y10T436/14; Y10T436/141111; Y10T436/145555; Y10T436/17; Y10T436/173845; Y10T436/25; Y10T436/25375; Y10T436/255
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |