US1694807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cooling and drying materials
Assignee: FLEISCHMANN CO
•
Filing: 1925-06-01
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Granted: 1928-12-11
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Expires: 1945-06-01
Abstract
No abstract record available.
Inventors
- 👤 Elmer B Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:59
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/04; F; F04; F04F; F04F5/00; F04F5/44; F04F5/46; F04F5/462
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) | 1931-12-11 | 1932-06-11 | 1932-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-12-11 | 1936-06-11 | 1936-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-12-11 | 1940-06-11 | 1940-12-11 | $7700.00 | Window Closed / Lapsed |