US3466299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dioxane complexes of lower alkanols and magnesium halides
Assignee: Dow Chemical Co
•
Filing: 1968-08-14
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Granted: 1969-09-09
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Expires: 1988-08-14
Abstract
No abstract record available.
Inventors
- 👤 Ulrich W Weissenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:30
CPC Classifications
C; C01; C01F; C01F5/00; C01F5/26; C01F5/30; C07; C07F; C07F3/00; C07F3/003
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) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |