Patent US4262237A successfully refreshed from Google Patents.
Patent US2441730A successfully refreshed from Google Patents.
US2441730A
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Method and means for preservation of blood plasma and the like by freezing and drying
Assignee: United States, AS REPRESENTED BY DIRECTOR OF OFFICE OF SCIENTIFIC RESEARCH AND DEVELOPMENT
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Filing: 1944-05-30
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Granted: 1948-05-18
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Expires: 1964-05-30
Abstract
No abstract record available.
Inventors
- 👤 Max M Strumia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:04
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/90; A23B2/92; A61; A61M; A61M1/00; A61M1/02; A61M1/0272; F; F26; F26B; F26B5/00; F26B5/04; F26B5/06; A61M2205/00; A61M2205/36; A61M2205/3606
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE20969E
Cited
US864978A
Cited
US1189711A
Cited
US1165306A
Cited
US1222801A
Cited
US1512909A
Cited
US1949616A
Cited
US1970956A
Cited
FR784430A
Cited
US2199815A
Cited
US2163996A
Cited
FR840092A
Cited
US2252739A
Cited
US2353986A
Cited
US2345548A
Cited
US2302253A
Cited
US2292447A
Cited
US2356068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-18 | 1951-11-17 | 1952-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-18 | 1955-11-17 | 1956-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-18 | 1959-11-17 | 1960-05-18 | $7700.00 | Window Closed / Lapsed |