US3501131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blood sample handling apparatus
Assignee: Coulter Electronics Inc
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Filing: 1968-07-23
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Granted: 1970-03-17
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Expires: 1988-07-23
Abstract
No abstract record available.
Inventors
- 👤 Donald Ralph Grantham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:26
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/02; A61M1/025; A61M5/00; A61M5/14; B; B01; B01F; B01F29/00; B01F29/30; B01F29/31; B01F31/00; B01F31/20; B01F31/201; B01F31/22; B01L; B01L9/00; B01L9/06
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) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |