US2831858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxazine and oxazoline derivatives
Assignee: Rohm and Haas Co
•
Filing: 1956-05-11
•
Granted: 1958-04-22
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Expires: 1976-05-11
Abstract
No abstract record available.
Inventors
- 👤 Benneville Peter L De
- 👤 Leo S Luskin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:34
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/52; C07D263/02; C07D263/08; C07D263/10; C07D263/12; C07D265/00; C07D265/04; C07D265/06; C07D265/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A NEW COMPOSITION OF MATTER OF THE FORMULA:
Claim 2
Dependent Claim
8 words
A NEW COMPOSITION OF MATTER OF THE FORMULA:
References Cited (Backward Citations)
US913514A
Cited
US2243295A
Cited
US2623013A
Cited
US2634259A
Cited
US2665271A
Cited
US2739948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |