US2686783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quinolyl dialkyl phosphates and salts thereof and process for the manufacture of same
Assignee: F Hoffmann La Roche AG
•
Filing: 1951-05-29
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Granted: 1954-08-17
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Expires: 1971-05-29
Abstract
No abstract record available.
Inventors
- 👤 Morrison Alexander Lang
- 👤 Atherton Frank Ratcliffe
- 👤 Andrews Kenneth John Maynard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:30
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/553; C07F9/576; C07F9/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF QUINOLYL-(3) -DI- (LOWER ALKYL)-PHOSPHATE, A QUATERNARY SALT OF QUINOLYL-(3)-DI(LOWER ALKYL)-PHOSPHATE WITH A LOWER ALKYL HALIDE AND A QUANTERNARY SALT OF QUINOLYL-(3)-DI-(LOWER ALKYL)-PHOSPHATE WITH A DI-(LOWER ALKYL) -SULFATE
Claim 2
Dependent Claim
35 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF QUINOLYL-(3) -DI- (LOWER ALKYL)-PHOSPHATE, A QUATERNARY SALT OF QUINOLYL-(3)-DI(LOWER ALKYL)-PHOSPHATE WITH A LOWER ALKYL HALIDE AND A QUANTERNARY SALT OF QUINOLYL-(3)-DI-(LOWER ALKYL)-PHOSPHATE WITH A DI-(LOWER ALKYL) -SULFATE
References Cited (Backward Citations)
DE283334C
Cited
US2480056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-16 | 1958-02-15 | 1958-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-16 | 1962-02-15 | 1962-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-16 | 1966-02-15 | 1966-08-17 | $7700.00 | Window Closed / Lapsed |