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US3030339A
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Nu-vinyl-2-oxazinidinone compounds
Assignee: Dow Chemical Co
•
Filing: 1958-03-27
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Granted: 1962-04-17
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Expires: 1978-03-27
Abstract
No abstract record available.
Inventors
- 👤 William F Tousignant
- 👤 Wilhelm E Walles
- 👤 Jr Thomas Houtman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:36
CPC Classifications
C; C07; C07D; C07D265/00; C07D265/04; C07D265/06; C07D265/08; C07D265/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
7 words
AN N-VINYL-2-OXAZINIDINONE COMPOUND HAVING THE EMPIRICAL FORMULA:
Claim 2
Dependent Claim
7 words
AN N-VINYL-2-OXAZINIDINONE COMPOUND HAVING THE EMPIRICAL FORMULA:
Claim 3
Dependent Claim
6 words
AN ADDITIONAL POLYMER OF THE FORMULA:
Claim 4
Dependent Claim
6 words
AN ADDITIONAL POLYMER OF THE FORMULA:
References Cited (Backward Citations)
US2818399A
Cited
US2818362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |