Patent US3063990A successfully refreshed from Google Patents.
US3063990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclopentanophenanthrenyl-oxazines
Assignee: BASF Corp
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Filing: 1960-02-12
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Granted: 1962-11-13
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Expires: 1980-02-12
Abstract
No abstract record available.
Inventors
- 👤 Kuehne Martin Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:06
CPC Classifications
C; C07; C07J; C07J41/00; C07J41/0033; C07J41/0055; C07J41/005; C07J41/0061; C07J43/00; C07J43/003
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
12 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE FORMULAE:
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) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |