US2994706A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2, 3 bis (2-alkynyloxy)-dioxanes
Assignee: Diamond Shamrock Corp
•
Filing: 1957-11-01
•
Granted: 1961-08-01
•
Expires: 1977-11-01
Abstract
No abstract record available.
Inventors
- 👤 Rosen Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:17
CPC Classifications
C; C07; C07D; C07D319/00; C07D319/10; C07D319/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE STRUCTURE:
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE STRUCTURE:
References Cited (Backward Citations)
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Cited
US2195386A
Cited
US2527853A
Cited
US2790812A
Cited
US2875124A
Cited
US2799616A
Cited
US2843601A
Cited
US2843602A
Cited
US2861919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |