US2345548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for desiccating sera, biologicals, and other materials
Assignee: FJ Stokes Machine Co
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Filing: 1940-05-24
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Granted: 1944-03-28
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Expires: 1960-05-24
Abstract
No abstract record available.
Inventors
- 👤 Earl W Flosdorf
- 👤 Francis J Stokes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:40
CPC Classifications
F; F26; F26B; F26B5/00; F26B5/04; F26B5/06; C; C12; C12N; C12N7/00; C12N2760/00; C12N2760/00011; C12N2760/16011; C12N2760/16051
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) | 1947-03-28 | 1947-09-27 | 1948-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-03-28 | 1951-09-27 | 1952-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-03-28 | 1955-09-27 | 1956-03-28 | $7700.00 | Window Closed / Lapsed |