Patent US3279068A successfully refreshed from Google Patents.
US3279068A
Expired / Lapsed
US
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Method of detecting carious tissue
Assignee: Barnes Hind Pharmaceuticals Inc
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Filing: 1964-01-23
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Granted: 1966-10-18
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Expires: 1984-01-23
Abstract
No abstract record available.
Inventors
- 👤 Marvin M Stark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:45
CPC Classifications
A; A61; A61Q; A61Q11/00; A61K; A61K6/00; A61K6/25; A61K8/00; A61K8/18; A61K8/30; A61K8/49; A61K8/4906; A61K8/4926; G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/52; A61K2800/00; A61K2800/40; A61K2800/42; A61K2800/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
THE METHOD OF DISCLOSING CARIOUS DENTIAL TISSUE AND CALCULUS COMPRISING APPLYING TO A SUSPECTED AREA A SMALL AMOUNT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF 9-AMINOACRIDINE HYDROCHLORIDE AND 9-AMINOACRIDINE.
Claim 2
Independent Claim
31 words
THE METHOD OF DISCLOSING CARIOUS DENTIAL TISSUE AND CALCULUS COMPRISING APPLYING TO A SUSPECTED AREA A SMALL AMOUNT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF 9-AMINOACRIDINE HYDROCHLORIDE AND 9-AMINOACRIDINE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |