Patent US2369711A successfully refreshed from Google Patents.
US2369711A
Expired / Lapsed
US
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Medicinal preparation
Assignee: Smith Kline & French Laboratories Ltd
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Filing: 1942-03-17
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Granted: 1945-02-20
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Expires: 1962-03-17
Abstract
No abstract record available.
Inventors
- 👤 Rudolph H Blythe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:12
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/16
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) | 1948-02-20 | 1948-08-21 | 1949-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-02-20 | 1952-08-21 | 1953-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-02-20 | 1956-08-21 | 1957-02-20 | $7700.00 | Window Closed / Lapsed |