US2694071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of tech
Assignee: —
•
Filing: —
•
Granted: 1954-11-09
•
Expires: 1971-11-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:08
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/02; C07D263/08; C07D263/10; C07D263/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
PROCESS FOR THE PREPARATION OF AN OXAZOLINE OF FORMULA,
Claim 2
Dependent Claim
9 words
PROCESS FOR THE PREPARATION OF AN OXAZOLINE OF FORMULA,
References Cited (Backward Citations)
US2114326A
Cited
US2513346A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |