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Patent US3536816A successfully refreshed from Google Patents.
US3536816A
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Water-in-oil emulsion
Assignee: Zeneca Inc
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Filing: 1964-09-30
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Granted: 1970-10-27
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Expires: 1984-09-30
Abstract
No abstract record available.
Inventors
- 👤 Hans J Kellner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:29
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/0012; A61K9/0014; A61K31/00; A61K31/21; A61K31/215; A61K31/22; A61K31/23; A61K31/33; A61K31/395; A61K31/535; A61K31/59; A61K8/00; A61K8/02; A61K8/04; A61K8/06; A61K8/064; A61K8/18; A61K8/19; A61K8/23; A61K8/30; A61K8/33; A61K8/37; A61K8/375; A61K9/10; A61K9/107; A61Q; A61Q1/00; A61Q1/02; A61Q17/00; A61Q17/04; A61Q19/00; C; C09; C09K; C09K23/00; C09K23/017; C09K23/018; Y; Y10; Y10S; Y10S516/00; Y10S516/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2895879A
Cited
US3216829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |