US2165950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the dehydration of moisture-containing compounds
Assignee: Hiram Walker and Sons Inc
•
Filing: 1935-02-25
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Granted: 1939-07-11
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Expires: 1955-02-25
Abstract
No abstract record available.
Inventors
- 👤 Herman F Willkie
- 👤 Clair S Boruff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:09
CPC Classifications
C; C05; C05F; C05F5/00; C05F5/006; C05F5/008; A; A23; A23K; A23K10/00; A23K10/30; A23K10/37; A23K10/38; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/20; Y02P; Y02P60/00; Y02P60/80; Y02P60/87
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) | 1942-07-10 | 1943-01-09 | 1943-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-07-10 | 1947-01-09 | 1947-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-07-10 | 1951-01-09 | 1951-07-11 | $7700.00 | Window Closed / Lapsed |