US3415380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sample preparation apparatus and unitary filter-pipette for use therein
Assignee: University of Kentucky Research Foundation
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Filing: 1966-08-10
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Granted: 1968-12-10
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Expires: 1986-08-10
Abstract
No abstract record available.
Inventors
- 👤 John H Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:01
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/02; B01L3/0203; B01L3/56; B01L3/569
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-10 | 1972-06-10 | 1972-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-10 | 1976-06-10 | 1976-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-10 | 1980-06-10 | 1980-12-10 | $7700.00 | Window Closed / Lapsed |