US2771468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4-aralkyl-3-morpholones, 4-aralkyl-3-homomorpholones and their preparation
Assignee: STWB Inc
•
Filing: 1954-02-19
•
Granted: 1956-11-20
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Expires: 1974-02-19
Abstract
No abstract record available.
Inventors
- 👤 Alexander R Surrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:05
CPC Classifications
C; C07; C07D; C07D267/00; C07D267/02; C07D267/08; C07D267/10; C07D265/00; C07D265/28; C07D265/30; C07D265/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUN HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUN HAVING THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |