US2467884A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spermicides
Assignee: Individual
•
Filing: 1944-02-02
•
Granted: 1949-04-19
•
Expires: 1964-02-02
Abstract
No abstract record available.
Inventors
- 👤 Nathaniel M Elias
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:28
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/185; A61K31/19; A61K31/20; Y; Y10; Y10S; Y10S424/00; Y10S424/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2052025A
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US2173203A
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US2055063A
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US2149240A
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US2302121A
Cited
US2192907A
Cited
US2269529A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |