US3384541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spermicidal vaginal pharmaceutical concentrate for producing nonaqueous foam with aerosol propellants
Assignee: Individual
•
Filing: 1964-10-28
•
Granted: 1968-05-21
•
Expires: 1984-10-28
Abstract
No abstract record available.
Inventors
- 👤 William G Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:06
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0034; A61K9/10; A61K9/12; A61K9/122; C; C09; C09K; C09K3/00; C09K3/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2854377A
Cited
US3055834A
Cited
US2943979A
Cited
US3131152A
Cited
US3244589A
Cited
US3219525A
Cited
US3240396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |