US3856825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3-diethylamino-2,2-dimethylpropyl 5-(substituted phenyl)-2-furoates
Assignee: ATK Launch Systems LLC
•
Filing: 1973-11-02
•
Granted: 1974-12-24
•
Expires: 1993-11-02
Abstract
Abstract The titled compounds are useful antispasmodics.
Inventors
- 👤 G Wright
- 👤 H Burch
- 👤 M Goldenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:01
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/56; C07D307/68
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA:
Claim 3
Dependent Claim
9 words
The compound of claim 1 wherein R is 4-nitro.
Claim 4
Dependent Claim
9 words
The compound of claim 1 wherein R is 4-trifluoromethyl.
Claim 5
Dependent Claim
9 words
The compound of claim 1 wherein R is 3,4-difluoro.
Claim 6
Dependent Claim
9 words
The compound of claim 1 wherein R is 3-methoxy.
Claim 7
Dependent Claim
9 words
The compound of claim 1 wherein R is 4-methyl.
Claim 8
Dependent Claim
9 words
The compound of claim 1 wherein R is 4-methoxy.
Claim 9
Dependent Claim
9 words
The compound of claim 1 wherein R is 4-bromo.
Claim 10
Dependent Claim
9 words
The compound of claim 1 wherein R is 2,3-dichloro.
Claim 11
Dependent Claim
9 words
The compound of claim 1 wherein R is 2-nitro-4-methyl.
Claim 12
Dependent Claim
9 words
The compound of claim 1 wherein R is 4-chloro.
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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |