US3629468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hygroscopically controlled effervescent mouthwash tablet
Assignee: HOWARD P ANDERSEN
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Filing: 1969-04-21
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Granted: 1971-12-21
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Expires: 1989-04-21
Abstract
Abstract AN EFFERVESCENT MOUTHWASH TABLET COMPRISING A GERMICIDAL AGENT, CHLOROPHYLL, AN ALKALI METAL CARBONATE SALT, ADIPIC ACID, FLAVORING INGREDIENTS, AND SWEETENING AGENTS.
Inventors
- 👤 Howard P Andersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:00
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/41; A61K8/416; A61K8/49; A61K8/4906; A61K8/4913; A61K2800/00; A61K2800/20; A61K2800/22; A61K2800/222
Claims Analysis
Total Claims: 0
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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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |