Patent US4072989A successfully refreshed from Google Patents.
Patent US3898243A successfully refreshed from Google Patents.
US3898243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Allantoin ascorbic acid complex
Assignee: INDUSTRIAL NATIONAL BANK OF RHODE ISLAND A NATIONAL BANKING ASSOCIATION
•
Filing: 1974-04-22
•
Granted: 1975-08-05
•
Expires: 1994-04-22
Abstract
Abstract An allantoin ascorbic acid complex is disclosed as is an allantoin salt ascorbic acid complex. Medicinal and cosmetic compositions containing these complexes are also disclosed.
Inventors
- 👤 Sebastian B Mecca
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:48
CPC Classifications
C; C07; C07D; C07D307/00; C07D307/02; C07D307/34; C07D307/56; C07D307/62; A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61K8/494; A61K8/4946; A61K8/67; A61K8/676; A61Q; A61Q19/00; C07D233/00; C07D233/54; C07D233/66; C07D233/88; A61K2800/00; A61K2800/40; A61K2800/52; A61K2800/70; A61K2800/72; A61Q15/00; A61Q19/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
AN ALLANTOIN ASCORBIC ACID COMPLEX.
Claim 2
Dependent Claim
5 words
AN ALLANTOIN ASCORBIC ACID COMPLEX.
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) | 1978-08-04 | 1979-02-03 | 1979-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-04 | 1983-02-03 | 1983-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-04 | 1987-02-03 | 1987-08-05 | $7700.00 | Window Closed / Lapsed |