US2369577A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for counting blood corpuscles
Assignee: Individual
•
Filing: 1941-05-12
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Granted: 1945-02-13
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Expires: 1961-05-12
Abstract
No abstract record available.
Inventors
- 👤 Kielland Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:33
CPC Classifications
G; G06; G06M; G06M1/00; G06M1/08; G06M1/10; G06M1/101; A; A61; A61B; A61B5/00; A61B5/15; A61B5/150007; A61B5/150343; G02; G02B; G02B21/00; G02B21/0004; G02B21/0016
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) | 1948-02-13 | 1948-08-14 | 1949-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-02-13 | 1952-08-14 | 1953-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-02-13 | 1956-08-14 | 1957-02-13 | $7700.00 | Window Closed / Lapsed |