Patent US3325544A successfully refreshed from Google Patents.
US3325544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
9-(2-amino-1-methylethyl) fluoren-9-ol and salts thereof
Assignee: Pharmacia and Upjohn Co
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Filing: 1965-06-10
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Granted: 1967-06-13
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Expires: 1985-06-10
Abstract
No abstract record available.
Inventors
- 👤 Robert B Moffett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:23
CPC Classifications
C; C07; C07C; C07C35/00; C07C35/22; C07C35/37; C07C35/38; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/06; C07C2603/10; C07C2603/12; C07C2603/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (A) COMPOUNDS OF THE FORMULA:
Claim 2
Dependent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (A) COMPOUNDS OF THE FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |