US3108377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Matrix for interproximal anterior restorations
Assignee: Individual
•
Filing: 1960-07-25
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Granted: 1963-10-29
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Expires: 1980-07-25
Abstract
No abstract record available.
Inventors
- 👤 Meyer Alvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:16
CPC Classifications
A; A61; A61C; A61C5/00; A61C5/80; A61C5/88
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A MATRIX FOR DENTAL RESTORATIONS COMPRISING A RELATIVELY LONG, NARROW STRIP OF FLEXIBLE MATERIAL SHAPED TO FIT BETWEEN TEETH, CHARACTERIZED BY THE FACT THAT SAID STRIP IS THICKER IN CROSS-SECTION AT ONE END THAN AT THE MIDDLE SECTION OF SAID STRIP AND THICKER AT THE END OPPOSITE SAID FIRST-MENTIONED END THAN SAID MIDDLE SECTION, AND INTERMEDIATE SAID SECTION AND SAID ONE END THE CROSSSECTION OF SAID STRIP INCREASES IN THICKNESS SUBSTANTIALLY CONTINUOUSLY, SAID STRIP BEING SUFFICIENTLY FLEXIBLE TO BEND BACK ALONG BOTH THE LINGUAL AND LABIAL SURFACES OF ONE OF SAID TEETH WHILE RESTORATIVE MATERIAL IS HARDENING.
Claim 2
Dependent Claim
97 words
A MATRIX FOR DENTAL RESTORATIONS COMPRISING A RELATIVELY LONG, NARROW STRIP OF FLEXIBLE MATERIAL SHAPED TO FIT BETWEEN TEETH, CHARACTERIZED BY THE FACT THAT SAID STRIP IS THICKER IN CROSS-SECTION AT ONE END THAN AT THE MIDDLE SECTION OF SAID STRIP AND THICKER AT THE END OPPOSITE SAID FIRST-MENTIONED END THAN SAID MIDDLE SECTION, AND INTERMEDIATE SAID SECTION AND SAID ONE END THE CROSSSECTION OF SAID STRIP INCREASES IN THICKNESS SUBSTANTIALLY CONTINUOUSLY, SAID STRIP BEING SUFFICIENTLY FLEXIBLE TO BEND BACK ALONG BOTH THE LINGUAL AND LABIAL SURFACES OF ONE OF SAID TEETH WHILE RESTORATIVE MATERIAL IS HARDENING.
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) | 1966-10-28 | 1967-04-29 | 1967-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-28 | 1971-04-29 | 1971-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-28 | 1975-04-29 | 1975-10-29 | $7700.00 | Window Closed / Lapsed |