Patent US2646428A successfully refreshed from Google Patents.
US2646428A
Expired / Lapsed
US
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Rutin derivatives and production thereof
Assignee: DAUSSE LAB
•
Filing: 1950-09-11
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Granted: 1953-07-21
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Expires: 1970-09-11
Abstract
No abstract record available.
Inventors
- 👤 Chabrier Pierre
- 👤 Pierre R L Giudicelli
- 👤 Charles H Genot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:33
CPC Classifications
C; C07; C07H; C07H17/00; C07H17/04; C07H17/06; C07H17/065; C07H17/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A MONO B-MORPHOLINYL ETHYL ETHER OF RUTIN.
Claim 2
Dependent Claim
7 words
A MONO B-MORPHOLINYL ETHYL ETHER OF RUTIN.
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) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |