US2738351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted glycerol ethers
Assignee: Bristol Laboratories Inc
•
Filing: 1952-08-02
•
Granted: 1956-03-13
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Expires: 1972-08-02
Abstract
No abstract record available.
Inventors
- 👤 Dickison Harry Leo
- 👤 Lee C Cheney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:14
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088; C07C; C07C323/00; C07C323/23; C07C323/24; C07C323/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A FREE BASE HAVING THE STRUCTURE
Claim 2
Dependent Claim
14 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF A FREE BASE HAVING THE STRUCTURE
References Cited (Backward Citations)
US2445356A
Cited
GB560568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |