US3907766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
L-aspartyl-aminomalonic acid diester
Assignee: Takeda Pharmaceutical Co Ltd
•
Filing: 1973-07-06
•
Granted: 1975-09-23
•
Expires: 1993-07-06
Abstract
Abstract A novel dipeptide, L-aspartyl-aminomalonic acid alkyl fenchyl diester, and its physiologically acceptable salts which are useful as a sweetener, and production thereof and sweetening compositions containing the dipeptide ester or its salt.
Inventors
- 👤 Masahiko Fujino
- 👤 Mitsuhiro Wakimasu
- 👤 Nobuo Nakajima
- 👤 Hisashi Aoki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:41
CPC Classifications
C; C07; C07K; C07K5/00; C07K5/04; C07K5/06; C07K5/06104; C07K5/06113; A; A23; A23L; A23L27/00; A23L27/30; A23L27/31; A23L27/32; Y; Y10; Y10S; Y10S530/00; Y10S530/801
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
12 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULA
References Cited (Backward Citations)
US3492131A
Cited
US3798206A
Cited
US3833553A
Cited
US3808190A
Cited
US3798204A
Cited
US3799918A
Cited
US3769333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |