US2889250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spermicidal alkylphenoxy-polyethoxyethanol emulsion
Assignee: Ortho Pharmaceutical Corp
•
Filing: 1955-12-29
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Granted: 1959-06-02
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Expires: 1975-12-29
Abstract
No abstract record available.
Inventors
- 👤 Mende William Carl
- 👤 Berliner Victor Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:47
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/02; Y; Y10; Y10S; Y10S424/00; Y10S424/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A SPERMICIDAL COMPOSITION CONSISTING OF AN ALKYLPHENOXYPOLYETHOXYETHANOL OF THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
12 words
A SPERMICIDAL COMPOSITION CONSISTING OF AN ALKYLPHENOXYPOLYETHOXYETHANOL OF THE FOLLOWING GENERAL FORMULA:
References Cited (Backward Citations)
US2752284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |