Patent US4256457A successfully refreshed from Google Patents.
US4256457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container for dental equipment for root-treatment
Assignee: Individual
•
Filing: 1979-09-24
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Granted: 1981-03-17
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Expires: 1999-09-24
Abstract
Abstract A container for dental equipment is equipped with six minitrays (2 to 7), which can be removed and sterilized individually, each of which comprises a handle (8) on its upper side and legs (9) on its underside. A minitray (2) is provided with elongated recesses (a to f), three similarly constructed minitrays (3 to 5) are provided with holes (9) for receiving root canal instruments and two further minitrays (6, 7) are provided with larger holes (h, k) for receiving glass tubes for holding treatment material. The four minitrays (2 to 5) have substantially the same dimensions, whereas the two latter minitrays (6, 7) are half as wide as the other minitrays.
Inventors
- 👤 Horst Behring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:41
CPC Classifications
A; A61; A61C; A61C19/00; A61C19/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
123 words
A container for dental equipment for use in root-treatment and having a plurality of inserts located side-by-side and serving to receive the dental equipment, the inserts being constructed as minitrays which can be removed individually and sterilized with each being provided on its upper side with a handle and on its underside with legs, and there being at least three different forms of minitray, whereof the first comprises elongated recesses for locating instruments, the second comprises holes with diameters of the order of 1 to 2 mm for receiving instruments, and the third comprises holes with diameters of the order of 5 to 20 mm for receiving receptacles for holding treatment material and there being at least one of each form of minitray.
Claim 2
Dependent Claim
123 words
A container for dental equipment for use in root-treatment and having a plurality of inserts located side-by-side and serving to receive the dental equipment, the inserts being constructed as minitrays which can be removed individually and sterilized with each being provided on its upper side with a handle and on its underside with legs, and there being at least three different forms of minitray, whereof the first comprises elongated recesses for locating instruments, the second comprises holes with diameters of the order of 1 to 2 mm for receiving instruments, and the third comprises holes with diameters of the order of 5 to 20 mm for receiving receptacles for holding treatment material and there being at least one of each form of minitray.
Claim 3
Dependent Claim
99 words
A container according to claim 1, having a substantially rectangular shape contains one first form minitray, three second form minitrays and two third form minitrays, one of the latter also having small holes for receiving root fillers, and all the minitrays being of the same length adapted to the width of the container, the same height and with the exception of the two third form minitrays the same width, the sum of the widths of the latter being equal to the width of the other minitrays, and each third form minitray being half as wide as the other minitrays.
Claim 4
Dependent Claim
73 words
A container according to claim 1 or 2, in which the first form minitray is located at one side of the container, the three second form minitrays are located in the central area of the container, and the two third form minitrays are arranged side-by-side at the other side of the container, the outer edges of the minitrays located at the side conforming to rounded corners of the side walls of the container.
Claim 5
Dependent Claim
59 words
A container according to claim 1 or 2, in which it is also provided with a further minitray, which has the same dimensions as a second form minitray and can be exchanged for one of these, such further minitray having both elongated recesses and small holes for receiving instruments and larger holes for receiving capillary tubes or other receptacles.
Claim 6
Dependent Claim
28 words
A container according to claim 1, in which the edges of the minitrays are bevelled at least on their sides which bear against each other in the container.
Claim 7
Dependent Claim
17 words
A container according to claim 1, in which the small holes are countersunk at their upper edges.
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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) | 1984-03-16 | 1984-09-15 | 1985-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-16 | 1988-09-15 | 1989-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-16 | 1992-09-15 | 1993-03-17 | $7700.00 | Window Closed / Lapsed |