Patent US3268544A successfully refreshed from Google Patents.
US3268544A
Expired / Lapsed
US
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Preparation of 2-oxazolines and 2-thiazolines
Assignee: ATK Launch Systems LLC
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Filing: 1964-11-12
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Granted: 1966-08-23
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Expires: 1984-11-12
Abstract
No abstract record available.
Inventors
- 👤 Thompson Grant
- 👤 Rogers F Lambert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:04
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/02; C07D263/08; C07D263/10; C07D263/12; C07D277/00; C07D277/02; C07D277/08; C07D277/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A PROCESS FOR PREPARING 5 MEMBERED HETEROCYCLIC PRODUCTS OF THE FORMULA
Claim 2
Dependent Claim
11 words
A PROCESS FOR PREPARING 5 MEMBERED HETEROCYCLIC PRODUCTS OF THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |