US3422813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for sterilization of males
Assignee: Dow Silicones Corp
•
Filing: 1965-06-21
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Granted: 1969-01-21
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Expires: 1985-06-21
Abstract
No abstract record available.
Inventors
- 👤 Silas A Braley Jr
- 👤 Jerry D Helmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:55
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0019; A61K9/0024; A61F; A61F6/00; A61F6/20; A61F6/22; A61K31/00; A61K31/74; A61K31/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |