US3895445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive compositions
Assignee: Individual
•
Filing: 1973-08-01
•
Granted: 1975-07-22
•
Expires: 1993-08-01
Abstract
Abstract A composition and method for bonding orthodontic appliances to teeth. The composition comprises a thermosetting resin composite which adheres to tooth enamel, and a methacrylic acid ester mixture which penetrates the thermosetting resin composite and adheres to orthodontic appliances.
Inventors
- 👤 Elliott Silverman
- 👤 Morton Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:41
CPC Classifications
A; A61; A61C; A61C7/00; A61K; A61K6/00; A61K6/70; A61K6/71; A61K6/76; A61K6/77
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
AN ADHESIVE BOND ADAPTED TO JOIN AN ORTHODONTIC BRACKET TO A TOOTH COMPRISING A LAYER FOR SECUREMENT TO A TOOTH OF A SET THERMOSETTING COMPOSITION ADJACENT A LAYER OF A HARDENED THERMOPLASTIC BONDING COMPOSITION FOR SECUREMENT TO A BRACKET WHEREIN AT THE BOUNDARY BETWEEN THE TWO THE THERMOPLASTIC BONDING COMPOSITION HAS PENETRATED THE THERMOSETTING SEALER COMPOSITION, AND WHEREIN THE THERMOSETTING SEALING COMPOSITION CONTAINS AS MAJOR INGREDIENTS ABOUT 3 PARTS BY WEIGHT OF THE REACTION PRODUCT OF BISPHENOL A AND GLYCIDYL METHACRYLATE, AND 1 PART OF METHYLMETHACRYLATE AND THE THERMOPLASTIC BONDING COMPOSITION COMPRISES A BLEND OF POLYMETHYL METHACRYLATE AND POLYCYCLOHEXYL METHACRYLATE IN HEXYL METHACRYLATE.
Claim 2
Dependent Claim
103 words
AN ADHESIVE BOND ADAPTED TO JOIN AN ORTHODONTIC BRACKET TO A TOOTH COMPRISING A LAYER FOR SECUREMENT TO A TOOTH OF A SET THERMOSETTING COMPOSITION ADJACENT A LAYER OF A HARDENED THERMOPLASTIC BONDING COMPOSITION FOR SECUREMENT TO A BRACKET WHEREIN AT THE BOUNDARY BETWEEN THE TWO THE THERMOPLASTIC BONDING COMPOSITION HAS PENETRATED THE THERMOSETTING SEALER COMPOSITION, AND WHEREIN THE THERMOSETTING SEALING COMPOSITION CONTAINS AS MAJOR INGREDIENTS ABOUT 3 PARTS BY WEIGHT OF THE REACTION PRODUCT OF BISPHENOL A AND GLYCIDYL METHACRYLATE, AND 1 PART OF METHYLMETHACRYLATE AND THE THERMOPLASTIC BONDING COMPOSITION COMPRISES A BLEND OF POLYMETHYL METHACRYLATE AND POLYCYCLOHEXYL METHACRYLATE IN HEXYL METHACRYLATE.
References Cited (Backward Citations)
US3345745A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |