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US2584052A
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US
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Apparatus for counting blood corpuscles
Assignee: Individual
•
Filing: 1949-08-30
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Granted: 1952-01-29
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Expires: 1969-08-30
Abstract
No abstract record available.
Inventors
- 👤 Paul E Sandorff
- 👤 Henry W Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:42
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/10; G01N15/14; G01N15/1468
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1974522A
Cited
US2183606A
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US1455795A
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US2037044A
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US2105470A
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US2369577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |