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US2648710A
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Bis-quaternary salts of 1:10-bis-(dialkylamino)-5:6-dithia-decane
Assignee: F Hoffmann La Roche AG
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Filing: 1951-09-19
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Granted: 1953-08-11
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Expires: 1971-09-19
Abstract
No abstract record available.
Inventors
- 👤 Morrison Alexander Lang
- 👤 Andrews Kenneth John Maynard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:30
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/13; A61K31/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND HAVING THE FORMULA
References Cited (Backward Citations)
US2363607A
Cited
US2401234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |