US3268455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acidic denture cleaning composition
Assignee: Boots Co PLC
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Filing: 1962-08-20
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Granted: 1966-08-23
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Expires: 1982-08-20
Abstract
No abstract record available.
Inventors
- 👤 Bryce Douglas Maxwell
- 👤 Sudbury Ann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:47
CPC Classifications
A; A61; A61Q; A61Q11/00; A61Q11/02; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/23; A61K8/30; A61K8/33; A61K8/34; A61K8/345; A61K8/39; A61K8/40; A61K8/44; A61K8/46; A61K8/463
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
AN ACID DENTURE CLEANSING PLASTE CONSISTING ESSENTIALLY OF 2.5-80% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BETAINE HYDROCHLORIDE AND SULPHAMIC ACID, AS THE ACTIVE ACID DENTURE CLEANING AGAINST, AND AN ANHYDROUS DILUENT SELECTED FROM THE GROUP CONSISTING OF GLYCEROL AND A MIXTURE OF POLYETHYLENE GLYCOL 1500 AND 400COMPATIBLE WITH SAID ACID CLEANSING AGENT AS THE PASTE BASE.
Claim 2
Dependent Claim
61 words
AN ACID DENTURE CLEANSING PLASTE CONSISTING ESSENTIALLY OF 2.5-80% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BETAINE HYDROCHLORIDE AND SULPHAMIC ACID, AS THE ACTIVE ACID DENTURE CLEANING AGAINST, AND AN ANHYDROUS DILUENT SELECTED FROM THE GROUP CONSISTING OF GLYCEROL AND A MIXTURE OF POLYETHYLENE GLYCOL 1500 AND 400COMPATIBLE WITH SAID ACID CLEANSING AGENT AS THE PASTE BASE.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |