Patent US3624216A successfully refreshed from Google Patents.
US3624216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
8-substituted theophyllines as anti-inflammatory agents
Assignee: Abbott Laboratories
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Filing: 1970-06-25
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Granted: 1971-11-30
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Expires: 1990-06-25
Abstract
Abstract A method of relieving inflammation and its concomittant swelling, tenderness and pain by administering therapeutically effective amounts of an 8-substituted theophylline to a patient in need of such treatment.
Inventors
- 👤 Herman Hal Stein
- 👤 Elizabeth Goodsell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:28
CPC Classifications
C; C07; C07D; C07D473/00; C07D473/02; C07D473/04; C07D473/06; C07D473/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A method in accordance with claim 1 wherein the compound is 8-cyclobutyl theophylline.
Claim 2
Dependent Claim
13 words
A method in accordance with claim 1 wherein the compound is 8-n-butyl theophylline.
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) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |