US3600306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin layer chromatography method and apparatus
Assignee: Tlc Corp
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Filing: 1969-09-05
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Granted: 1971-08-17
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Expires: 1989-09-05
Abstract
Abstract A DISPOSABLE CHROMATOGRAPHIC UNIT WHICH INCLUDES (A) A SEMI-SOLID SOLVENT, (B) STAIN, (C) A CHROMATOGRAPHIC PLATE, AND (D) A CHROMATOGRAPHY TANK IN ONE PACKAGE. THE SEMI-SOLID SOLVENTS ARE PREMIXED TOGETHER WITH THE STAIN SO AS TO BE AVAILABLE FOR USE AT ANY TIME. THE ENTIRE EQUIPMENT IS DISPOSABLE, THE STRUCTURAL PARTS BEING MADE OF INEXPENSIVE PLASTIC OR METAL FOIL WHICH IS LIGHT WEIGHT AND WHICH CAN BE THROWN AWAY AFTER A SINGLE USE.
Inventors
- 👤 Paul M Tocci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:32
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/90; G01N30/94; G01N30/02; G01N30/60; G01N30/6052; G01N30/6065
Claims Analysis
Total Claims: 0
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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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |