US2329619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
mu-substituted oxazolines, mu-substituted pentoxazolines, and methods for their preparation
Assignee: Wyeth Holdings LLC
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Filing: 1941-09-04
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Granted: 1943-09-14
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Expires: 1961-09-04
Abstract
No abstract record available.
Inventors
- 👤 Jr David Walker Jayne
- 👤 Day Harold Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:20
CPC Classifications
C; C07; C07D; C07D265/00; C07D265/04; C07D265/06; C07D265/08; C07D263/00; C07D263/02; C07D263/08; C07D263/10; C07D263/12
Claims Analysis
Total Claims: 0
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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) | 1946-09-13 | 1947-03-15 | 1947-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-09-13 | 1951-03-15 | 1951-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-09-13 | 1955-03-15 | 1955-09-14 | $7700.00 | Window Closed / Lapsed |