US3277164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Salicylic acid derivatives
Assignee: Roche Diagnostics GmbH
•
Filing: 1963-03-07
•
Granted: 1966-10-04
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Expires: 1983-03-07
Abstract
No abstract record available.
Inventors
- 👤 Haack Erich
- 👤 Gall Rudi
- 👤 Heerdt Ruth
- 👤 Achelis Johann Daniel
- 👤 Felix H Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:23
CPC Classifications
C; C07; C07C; C07C65/00; C07C65/01; C07C65/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH131520A
Cited
US1969356A
Cited
US2042343A
Cited
US2807643A
Cited
US2961377A
Cited
US3116324A
Cited
US3174901A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |