US3306818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preservation of sperm
Assignee: Merck and Co Inc
•
Filing: 1963-09-04
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Granted: 1967-02-28
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Expires: 1983-09-04
Abstract
No abstract record available.
Inventors
- 👤 Folkers Karl
- 👤 Jr Atwood C Page
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:02
CPC Classifications
A; A61; A61K; A61K35/00; A61K35/12; A61K35/48; A61K35/52; A01; A01N; A01N1/00; A01N1/10; A01N1/12; A01N1/122; A01N1/126
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A STABILIZED SPERM PREPARATION WHICH COMPRISES LIVE MOTILE SPERM CELLS INTIMATELY DISPERSED IN AN AQUEOUS MEDIUM INCLUDING ASSIMILABLE SOURCES OF CARBON AND NITROGEN, INORGANIC SALTS ESSENTIAL TO THE CELLS AND A MINOR AMOUNT OF A COMPOUND FROM THE GROUP CONSISTING OF 1,A-BENZOQUINONE COMPOUNDS OF THE FORMULA:
Claim 2
Dependent Claim
46 words
A STABILIZED SPERM PREPARATION WHICH COMPRISES LIVE MOTILE SPERM CELLS INTIMATELY DISPERSED IN AN AQUEOUS MEDIUM INCLUDING ASSIMILABLE SOURCES OF CARBON AND NITROGEN, INORGANIC SALTS ESSENTIAL TO THE CELLS AND A MINOR AMOUNT OF A COMPOUND FROM THE GROUP CONSISTING OF 1,A-BENZOQUINONE COMPOUNDS OF THE FORMULA:
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |