Patent US3262929A successfully refreshed from Google Patents.
US3262929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-styrylbenzoxazole compounds
Assignee: Mitsui Chemical Industry Co Ltd
•
Filing: 1962-08-31
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Granted: 1966-07-26
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Expires: 1982-08-31
Abstract
No abstract record available.
Inventors
- 👤 Okubo Ichiro
- 👤 Tsujimoto Michihiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:07
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/52; C07D263/54; C07D263/56; C07D263/60; D; D06; D06L; D06L4/00; D06L4/60; D06L4/614; D06L4/636
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A 2-STYRYLBENZOXAZOLE COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
6 words
A 2-STYRYLBENZOXAZOLE COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
US2875089A
Cited
CA578303A
Cited
GB669402A
Cited
US2639282A
Cited
US2953561A
Cited
FR1248230A
Cited
US3158610A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |