Patent US2789138A successfully refreshed from Google Patents.
US2789138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
d-nu-methyl-nu-benzyl-beta-phenyliso-propylamine
Assignee: Pharmacia and Upjohn Co
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Filing: 1952-06-02
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Granted: 1957-04-16
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Expires: 1972-06-02
Abstract
No abstract record available.
Inventors
- 👤 Richard V Heinzelman
- 👤 Brooke D Aspergren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:37
CPC Classifications
C; C07; C07C; C07C215/00; C07C215/02; C07C215/04; C07C215/06; C07C215/08; A; A61; A61K; A61K31/00; A61K31/13; A61K31/135; A61K31/137; C07C211/00; C07C211/01; C07C211/26; C07C211/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A COMPOUND SUBSTANTIALLY FREE FROM ITS OPTICAL ISOMER AND SELECTED FROM THE GROUP CONSISTING OF D-N-METHYLN-BENZYL-B-PHENYLISOPROPYLAMINE AND ACID ADDITION SALTS. THEREOF.
Claim 2
Dependent Claim
21 words
A COMPOUND SUBSTANTIALLY FREE FROM ITS OPTICAL ISOMER AND SELECTED FROM THE GROUP CONSISTING OF D-N-METHYLN-BENZYL-B-PHENYLISOPROPYLAMINE AND ACID ADDITION SALTS. THEREOF.
References Cited (Backward Citations)
US2006114A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-15 | 1960-10-15 | 1961-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-15 | 1964-10-15 | 1965-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-15 | 1968-10-15 | 1969-04-16 | $7700.00 | Window Closed / Lapsed |