Patent US3749786A successfully refreshed from Google Patents.
US3749786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic compounds in treating allergic conditions
Assignee: Sandoz AG
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Filing: 1972-08-07
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Granted: 1973-07-31
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Expires: 1992-08-07
Abstract
Abstract THE PRESENT INVENTION CONCERNS A NOVEL METHOD OF TREATING ALLERGIC CONDITIONS, WHICH COMPRISES ADMINISTERING AN EFFECTIVE DOSE OF A HISTAMINOLYTIC OF THE FORMULA A<(-(R1-1,2-PHENYLENE)-C(=C<(-(CH2)2-N(-R2)-(CH2)2-))- (3,2-THIOPHENYLENE)-B-) WHEREIN R1 IS HYDROGEN, HALOGEN OR ALKOXY OF 1 TO 4 CARBON ATOMS, R2 IS ALKYL OF 1 TO 4 CARBON ATOMS, AND -A-B- IS -CH2-CO- OR -CO-CH2, OR A PHARMACEUTICALLY ACCEPTABLE ACID ADDITON SALT THEREOF.
Inventors
- 👤 G Schwarb
- 👤 J Bourquin
- 👤 E Waldvogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:09
CPC Classifications
C; C07; C07D; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/24; C07D333/50; C07D333/78; C07D333/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |