Patent US3287893A successfully refreshed from Google Patents.
Patent US3235507A successfully refreshed from Google Patents.
US3235507A
Expired / Lapsed
US
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Novel oxazoline compounds and method of preparation
Assignee: Purex Corp Ltd
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Filing: 1962-07-03
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Granted: 1966-02-15
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Expires: 1982-07-03
Abstract
No abstract record available.
Inventors
- 👤 Pollack Isidore
- 👤 Frederick S Kaveggia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:20
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/06; C07; C07D; C07D263/00; C07D263/02; C07D263/08; C07D263/10; C07D263/14; C07D277/00; C07D277/02; C07D277/20; C07D277/32; C07D277/56
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
5 words
A COMPOUND HAVING THE FORMULA:
Claim 3
Dependent Claim
27 words
AS A DYE COMPOSITION OF MATTER FOR COLORING TEXTILE FIBERS, A WEAKLY ACID AQUEOUS SOLUTION CONTAINING A MINOR AMOUNT OF A COMPOUND AS DEFINED IN CLAIM 1.
References Cited (Backward Citations)
US2402791A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |