US3541017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Denture cleanser preparations comprising zirconium silicate and zirconium dioxide
Assignee: Indiana University Foundation Inc
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Filing: 1969-02-04
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Granted: 1970-11-17
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Expires: 1989-02-04
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Muhler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:06
CPC Classifications
A; A61; A61Q; A61Q11/00; A61Q11/02; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/28; C; C09; C09K; C09K3/00; C09K3/14; C09K3/1454; C09K3/1481; C11; C11D; C11D3/00; C11D3/02; C11D3/12; C11D3/1213; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2427799A
Cited
US3071455A
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US3151027A
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US3257282A
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US3330732A
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US3378445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |