US4053308A
Expired / Lapsed
US
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Nonprecious alloy for fusion to porcelain
Assignee: Austenal Inc
•
Filing: 1974-12-24
•
Granted: 1977-10-11
•
Expires: 1994-12-24
Abstract
Abstract A nonprecious alloy for dental restorations fused to porcelain includes the following ranges of constituents in percentages by weight: ______________________________________ Constituent Proportional Range ______________________________________ Nickel Balance Chromium 10.0-22.0 Aluminum 1.0-5.0 Silicon 0.5-2.0 Manganese 0.01-0.2 Molybdenum 0.0-7.0 and one of the following Groups A or B: Group A Strontium, lanthanum and/or zirconium individually or as a combination of strontium and zirconium, and 0.2-2.0 either iron or tungsten 0.0-5.0 separately or in combination Group B Strontium, lanthanum and/or zirconium individually or as a combination of strontium and zirconium, 0.0-2.0 gallium, and 1.0-3.0 iron 0.0-1.0 ______________________________________
Inventors
- 👤 John A. Tesk
- 👤 Ronald P. Dudek
- 👤 Peter Kosmos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:50
CPC Classifications
C; C22; C22C; C22C19/00; C22C19/03; C22C19/05; A; A61; A61K; A61K6/00; A61K6/80; A61K6/84; A61K6/842; C22C19/051; C22C19/055
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
89 words
A nonprecious alloy consisting essentially of the following constituents in the indicated percentages by weight: ______________________________________
constituent Proportional Range
______________________________________
Nickel Balance
Chromium 10.0-22.0
Aluminum 1.0-5.0
Silicon 0.5-2.0
Manganese 0.01-0.2
Molybdenum 0.0-7.0
______________________________________ and one of the following Groups A or B: ______________________________________
Group A
Strontium, lanthanum and/or
zirconium individually or as
a combination of strontium and
zirconium, 0.2-2.0
either iron or tungsten 0.0-5.0
seperately or in combination
Group B
Strontium, lanthanum and/or
zirconium individually or
as a combination of strontium
and zirconium, 0.0-2.0
gallium, 1.0-3.0
iron 0.0-1.0.
______________________________________
Claim 2
Dependent Claim
89 words
A nonprecious alloy consisting essentially of the following constituents in the indicated percentages by weight: ______________________________________
constituent Proportional Range
______________________________________
Nickel Balance
Chromium 10.0-22.0
Aluminum 1.0-5.0
Silicon 0.5-2.0
Manganese 0.01-0.2
Molybdenum 0.0-7.0
______________________________________ and one of the following Groups A or B: ______________________________________
Group A
Strontium, lanthanum and/or
zirconium individually or as
a combination of strontium and
zirconium, 0.2-2.0
either iron or tungsten 0.0-5.0
seperately or in combination
Group B
Strontium, lanthanum and/or
zirconium individually or
as a combination of strontium
and zirconium, 0.0-2.0
gallium, 1.0-3.0
iron 0.0-1.0.
______________________________________
Claim 3
Dependent Claim
57 words
A nonprecious alloy consisting essentially of the following constituents in the indicated ranges of percentages by weight. ______________________________________
Constituent Proportional Range
______________________________________
Nickel Balance
Chromium 10.0-15.0
Molybdenum 1.0-7.0
Aluminum 1.0-5.0
Silicon 0.5-2.0
Manganese 0.01-0.2
Iron 0-5.0
An element selected
from the group con-
sisting of Strontium,
Lanthanum, Zirconium
or a combination of
Strontium and Zirconium
0.2-2.0.
______________________________________
Claim 4
Dependent Claim
57 words
A nonprecious alloy consisting essentially of the following constituents in the indicated ranges of percentages by weight. ______________________________________
Constituent Proportional Range
______________________________________
Nickel Balance
Chromium 10.0-15.0
Molybdenum 1.0-7.0
Aluminum 1.0-5.0
Silicon 0.5-2.0
Manganese 0.01-0.2
Iron 0-5.0
An element selected
from the group con-
sisting of Strontium,
Lanthanum, Zirconium
or a combination of
Strontium and Zirconium
0.2-2.0.
______________________________________
Claim 5
Dependent Claim
53 words
A nonprecious alloy consisting essentially of the following constituents in the indicated percentages by weight: ______________________________________
Constituent Composition
______________________________________
Nickel 25.4
Chromium 13.5
Molybdenum 5.0
Aluminum 3.0
Silicon 1.0
Manganese 0.1
Iron 1.5
An element selected from
the group consisting of
Strontium, Lanthanum,
Zirconium or a combination
of Strontium and Zirconium
0.5.
______________________________________
Claim 6
Dependent Claim
53 words
A nonprecious alloy consisting essentially of the following constituents in the indicated percentages by weight: ______________________________________
Constituent Composition
______________________________________
Nickel 25.4
Chromium 13.5
Molybdenum 5.0
Aluminum 3.0
Silicon 1.0
Manganese 0.1
Iron 1.5
An element selected from
the group consisting of
Strontium, Lanthanum,
Zirconium or a combination
of Strontium and Zirconium
0.5.
______________________________________
Claim 7
Dependent Claim
54 words
A nonprecious alloy consisting essentially of the following constituents in the indicated percentages by weight: ______________________________________
Constituent Proportional Range
______________________________________
Nickel Balance
Chromium 10.0-15.0
Molybdenum 1.0-5.0
Aluminum 1.0-5.0
Silicon 0.5-2.0
Manganese 0.01-0.2
An element selected from
the group consisting of
Strontium, Lanthanum,
Zirconium or a combination
of Strontium and Zirconium
0.2-2.0
Tungsten 0.5-5.0.
______________________________________
Claim 8
Dependent Claim
54 words
A nonprecious alloy consisting essentially of the following constituents in the indicated percentages by weight: ______________________________________
Constituent Proportional Range
______________________________________
Nickel Balance
Chromium 10.0-15.0
Molybdenum 1.0-5.0
Aluminum 1.0-5.0
Silicon 0.5-2.0
Manganese 0.01-0.2
An element selected from
the group consisting of
Strontium, Lanthanum,
Zirconium or a combination
of Strontium and Zirconium
0.2-2.0
Tungsten 0.5-5.0.
______________________________________
Claim 9
Dependent Claim
55 words
A nonprecious alloy consisting essentially of the following constituents in the indicated ranges of percentages by weight: ______________________________________
Constituent Composition
______________________________________
Nickel 78.4
Chromium 13.5
Molybdenum 1.5
Aluminum 3.0
Silicon 1.0
Manganese 0.1
An element selected from the
group consisting of Strontium,
Lanthanum, Zirconium or a
combination of Strontium and
Zirconium 0.5
Tungsten 2.0.
______________________________________
Claim 10
Dependent Claim
55 words
A nonprecious alloy consisting essentially of the following constituents in the indicated ranges of percentages by weight: ______________________________________
Constituent Composition
______________________________________
Nickel 78.4
Chromium 13.5
Molybdenum 1.5
Aluminum 3.0
Silicon 1.0
Manganese 0.1
An element selected from the
group consisting of Strontium,
Lanthanum, Zirconium or a
combination of Strontium and
Zirconium 0.5
Tungsten 2.0.
______________________________________
Claim 11
Dependent Claim
58 words
A nonprecious alloy consisting essentially of the following constituents in the indicated ranges of percentages by weight: ______________________________________
Constituent Proportional Range
______________________________________
Nickel Balance
Chromium 10.0-22.0
Molybdenum 0.0-3.0
Aluminum 1.0-5.0
Silicon 0.5-2.0
Manganese 0.01-0.2
An element selected from the
group consisting of Strontium
Lanthanum, Zirconium or a
combination of Strontium and
Zirconium 0.0-2.0
Gallium 1.0-3.0
Iron 0.0-1.0.
______________________________________
Claim 12
Dependent Claim
58 words
A nonprecious alloy consisting essentially of the following constituents in the indicated ranges of percentages by weight: ______________________________________
Constituent Proportional Range
______________________________________
Nickel Balance
Chromium 10.0-22.0
Molybdenum 0.0-3.0
Aluminum 1.0-5.0
Silicon 0.5-2.0
Manganese 0.01-0.2
An element selected from the
group consisting of Strontium
Lanthanum, Zirconium or a
combination of Strontium and
Zirconium 0.0-2.0
Gallium 1.0-3.0
Iron 0.0-1.0.
______________________________________
Claim 13
Dependent Claim
58 words
A nonprecious alloy consisting essentially of the following constituents in the indicated ranges of percentages by weight: ______________________________________
Constituent Composition
______________________________________
Nickel 78.1
Chromium 13.5
Molybdenum 1.5
Aluminum 3.0
Silicon 1.0
Manganese 0.1
An element selected from the
group consisting of Strontium,
Lanthanum, Zirconium or a
combination of Strontium and
0.5
Zirconium 0.5
Gallium 2.0
Iron 0.3.
______________________________________
Claim 14
Dependent Claim
58 words
A nonprecious alloy consisting essentially of the following constituents in the indicated ranges of percentages by weight: ______________________________________
Constituent Composition
______________________________________
Nickel 78.1
Chromium 13.5
Molybdenum 1.5
Aluminum 3.0
Silicon 1.0
Manganese 0.1
An element selected from the
group consisting of Strontium,
Lanthanum, Zirconium or a
combination of Strontium and
0.5
Zirconium 0.5
Gallium 2.0
Iron 0.3.
______________________________________
Claim 15
Dependent Claim
57 words
A nonprecious alloy consisting essentially of the following constituents in the indicated ranges of percentages by weight. ______________________________________
Constituent Proportional Range
______________________________________
Nickel Balance
Chromium 10.0-15.0
Molybdenum 1.0-7.0
Aluminum 1.0-5.0
Silicon 0.5-2.0
Manganese 0.01-0.2
Tungsten 0-5.0
An element selected
from the group con-
sisting of Strontium,
Lanthanum, Zirconium
or a combination of
Strontium and Zirconium
0.2-2.0.
______________________________________
Claim 16
Dependent Claim
57 words
A nonprecious alloy consisting essentially of the following constituents in the indicated ranges of percentages by weight. ______________________________________
Constituent Proportional Range
______________________________________
Nickel Balance
Chromium 10.0-15.0
Molybdenum 1.0-7.0
Aluminum 1.0-5.0
Silicon 0.5-2.0
Manganese 0.01-0.2
Tungsten 0-5.0
An element selected
from the group con-
sisting of Strontium,
Lanthanum, Zirconium
or a combination of
Strontium and Zirconium
0.2-2.0.
______________________________________
Claim 17
Dependent Claim
59 words
A nonprecious alloy consisting essentially of the following constituents in the indicated ranges of percentages by weight. ______________________________________
Constituent Proportional Range
______________________________________
Nickel Balance
Chromium 10.0-15.0
Molybdenum 1.0-7.0
Aluminum 1.0-5.0
Silicon 0.5-2.0
Manganese 0.01-0.2
Iron 0-2.5
Tungsten 0-2.5
An element selected
from the group con-
sisting of Strontium,
Lanthanum, Zirconium
or a combination of
Strontium and Zirconium
0.2-2.0.
______________________________________
Claim 18
Dependent Claim
59 words
A nonprecious alloy consisting essentially of the following constituents in the indicated ranges of percentages by weight. ______________________________________
Constituent Proportional Range
______________________________________
Nickel Balance
Chromium 10.0-15.0
Molybdenum 1.0-7.0
Aluminum 1.0-5.0
Silicon 0.5-2.0
Manganese 0.01-0.2
Iron 0-2.5
Tungsten 0-2.5
An element selected
from the group con-
sisting of Strontium,
Lanthanum, Zirconium
or a combination of
Strontium and Zirconium
0.2-2.0.
______________________________________
Claim 19
Dependent Claim
55 words
A nonprecious alloy consisting essentially of the following constituents in the indicated percentages by weight: ______________________________________
Constituent Composition
______________________________________
Nickel 75.4
Chromium 13.5
Molybdenum 5.0
Aluminum 3.0
Silicon 1.0
Manganese 0.1
Iron 1.0
Tungsten 0.5
An element selected from
the group consisting of
Strontium, Lanthanum,
Zirconium or a combination
of Strontium and Zirconium
0.5.
______________________________________
Claim 20
Dependent Claim
55 words
A nonprecious alloy consisting essentially of the following constituents in the indicated percentages by weight: ______________________________________
Constituent Composition
______________________________________
Nickel 75.4
Chromium 13.5
Molybdenum 5.0
Aluminum 3.0
Silicon 1.0
Manganese 0.1
Iron 1.0
Tungsten 0.5
An element selected from
the group consisting of
Strontium, Lanthanum,
Zirconium or a combination
of Strontium and Zirconium
0.5.
______________________________________
References Cited (Backward Citations)
US2460590A
Cited
US3005704A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-10 | 1981-04-11 | 1981-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-10 | 1985-04-11 | 1985-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-10 | 1989-04-11 | 1989-10-11 | $7700.00 | Window Closed / Lapsed |