US2666784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonhygroscopic choline salts
Assignee: BASF SE
•
Filing: 1952-01-31
•
Granted: 1954-01-19
•
Expires: 1972-01-31
Abstract
No abstract record available.
Inventors
- 👤 Hopff Heinrich
- 👤 Spaenig Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:06
CPC Classifications
C; C07; C07C; C07C229/00; C07C229/02; C07C229/04; C07C229/06; C07C229/10; A; A61; A61K; A61K31/00; A61K31/185; A61K31/205
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
9 words
A DOUBLE SALT OF MONOCHOLINE CITRATE OF THE FORMULA
References Cited (Backward Citations)
US562267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |