US3449938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for separating and detecting fluid materials
Assignee: University of Utah
•
Filing: 1967-08-03
•
Granted: 1969-06-17
•
Expires: 1987-08-03
Abstract
No abstract record available.
Inventors
- 👤 John C Giddings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:14
CPC Classifications
G; G01; G01N; G01N30/00; G01N30/0005; G01N2030/0015; G01N2030/002; G01N2030/004; G01N2030/0045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3345803A
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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) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |