US2441848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilizing alkylene glycols
Assignee: Dow Chemical Co
•
Filing: 1945-08-06
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Granted: 1948-05-18
•
Expires: 1965-08-06
Abstract
No abstract record available.
Inventors
- 👤 Arthur R Sexton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:33
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1851493A
Cited
US1903287A
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US1988584A
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US2078256A
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US2130924A
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US2164564A
Cited
US2268388A
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 |