US2604249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic fraction-collection apparatus
Assignee: Technicon Chromatography Corp
•
Filing: 1947-09-05
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Granted: 1952-07-22
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Expires: 1967-09-05
Abstract
No abstract record available.
Inventors
- 👤 Gorham George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:42
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10; G01N1/18; Y; Y10; Y10S; Y10S177/00; Y10S177/06; Y10T; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19874
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1123548A
Cited
US1748390A
Cited
US1811624A
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GB325376A
Cited
DE574794C
Cited
US2049722A
Cited
US2493382A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |