Patent US3067743A successfully refreshed from Google Patents.
US3067743A
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Alginic compounds
Assignee: Alginate Industries Ltd
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Filing: 1959-10-28
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Granted: 1962-12-11
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Expires: 1979-10-28
Abstract
No abstract record available.
Inventors
- 👤 Merton Robert Ralph
- 👤 Blood Cyril Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:46
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0034; A61F; A61F6/00; A61F6/06; A61F6/08; A61L; A61L15/00; A61L15/16; A61L15/22; A61L15/28; A61L15/42; A61L15/46; A61L2300/00; A61L2300/40; A61L2300/404; A61L2300/408; Y; Y10; Y10S; Y10S424/00; Y10S424/14; Y10S604/00; Y10S604/904
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
26 words
A FIBROUS SPERMICIDAL TAMPON SOLUBLE IN BODY FLUIDS COMPRISING ESSENTIALLY DRY SOLUBLE ALGINATE FIBERS CONTAINING BETWEEN 0.2K% AND 5% BY WEIGHT OF ADSORBED SODIUM DI-OCTYL SULPHOUSUCCINATE.
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) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |