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Patent US3475427A successfully refreshed from Google Patents.
US3475427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenoxazines
Assignee: GlaxoSmithKline LLC
•
Filing: 1966-02-03
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Granted: 1969-10-28
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Expires: 1986-02-03
Abstract
No abstract record available.
Inventors
- 👤 Benjamin Blank
- 👤 Blaine M Sutton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 08:56
CPC Classifications
C; C07; C07C; C07C311/00; C07C311/22; C07C311/29; C07C205/00; C07C205/49; C07C205/57; C07C205/59; C07C317/00; C07C317/16; C07C317/22; C07D; C07D265/00; C07D265/28; C07D265/34; C07D265/38
Claims Analysis
Total Claims: 0
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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) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |