Patent US5342361A successfully refreshed from Google Patents.
US4037172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic laser materials
Assignee: Trane US Inc
•
Filing: 1963-09-17
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Granted: 1977-07-19
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Expires: 1983-09-17
Abstract
Abstract A material exhibiting narrow line fluorescence when excited by high energy radiation, hence suitable for laser applications, is formed by dispersion of rare earth ions bonded to organic molecules in the form of an organometallic chelate, in solid solution in a plastic host.
Inventors
- 👤 Nicolae Filipescu
- 👤 Nelson McAvoy
- 👤 Morton R. Kagan
- 👤 Francis A. Serafin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:16
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/14; H01S3/16; H01S3/168; H01S3/17
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
18 words
An optical maser material comprising a solid polymeric matrix having uniformly distributed therein a rare earth metal chelate.
Claim 2
Dependent Claim
18 words
An optical maser material comprising a solid polymeric matrix having uniformly distributed therein a rare earth metal chelate.
Claim 3
Dependent Claim
23 words
An optical maser material comprising a solid polymerized ethylenically unsaturated monomer having uniformly distributed therein in solid solution a rare earth metal chelate.
Claim 4
Dependent Claim
23 words
An optical maser material comprising a solid polymerized ethylenically unsaturated monomer having uniformly distributed therein in solid solution a rare earth metal chelate.
Claim 5
Dependent Claim
26 words
An optical maser material comprising a solid polymerized ethylenically unsaturated monomer having uniformly distributed therein in solid solution a rare earth metal chelate of a beta-diketone.
Claim 6
Dependent Claim
26 words
An optical maser material comprising a solid polymerized ethylenically unsaturated monomer having uniformly distributed therein in solid solution a rare earth metal chelate of a beta-diketone.
Claim 7
Dependent Claim
26 words
An optical maser material comprising a solid polymerized ethylenically unsaturated monomer having uniformly distributed therein in solid solution a rare earth metal chelate of a hydroxyaldehyde.
Claim 8
Dependent Claim
26 words
An optical maser material comprising a solid polymerized ethylenically unsaturated monomer having uniformly distributed therein in solid solution a rare earth metal chelate of a hydroxyaldehyde.
Claim 9
Dependent Claim
27 words
An optical maser material comprising a solid polymerized ethylenically unsaturated monomer having uniformly distributed therein in solid solution a rare earth metal chelate of a hydroxycarboxylic acid.
Claim 10
Dependent Claim
27 words
An optical maser material comprising a solid polymerized ethylenically unsaturated monomer having uniformly distributed therein in solid solution a rare earth metal chelate of a hydroxycarboxylic acid.
Claim 11
Dependent Claim
40 words
An optical maser material comprising a solid polymerized ethylenically unsaturated monomer having uniformly distributed therein in solid solution a rare earth metal chelate of a member selected from the group consisting of 8-hydroxyquinoline and its alkyl, aryl, and halo-substituted derivatives.
Claim 12
Dependent Claim
40 words
An optical maser material comprising a solid polymerized ethylenically unsaturated monomer having uniformly distributed therein in solid solution a rare earth metal chelate of a member selected from the group consisting of 8-hydroxyquinoline and its alkyl, aryl, and halo-substituted derivatives.
Claim 13
Dependent Claim
18 words
An optical maser material comprising polymethylmethacrylate having uniformly distributed therein in solid solution a rare earth metal chelate.
Claim 14
Dependent Claim
18 words
An optical maser material comprising polymethylmethacrylate having uniformly distributed therein in solid solution a rare earth metal chelate.
Claim 15
Dependent Claim
13 words
An optical maser material comprising polymethylmethacrylate having uniformly distributed therein a europium chelate.
Claim 16
Dependent Claim
13 words
An optical maser material comprising polymethylmethacrylate having uniformly distributed therein a europium chelate.
Claim 17
Dependent Claim
13 words
An optical maser material comprising polymethylmethacrylate having uniformly distributed therein europium tris-(4,4,4-trifluoro-1-(2-thienyl)-1,3-butanedione chelate.
Claim 18
Dependent Claim
13 words
An optical maser material comprising polymethylmethacrylate having uniformly distributed therein europium tris-(4,4,4-trifluoro-1-(2-thienyl)-1,3-butanedione chelate.
Claim 19
Dependent Claim
27 words
The maser material of claim 9 in which the concentration of europium ion in the polymer is between about 10 17 and 10 20 ions per cc.
Claim 20
Dependent Claim
21 words
An optical maser material comprising a polymerized ethylenically unsaturated monomer having distributed therein in solid solution a rare earth metal chelate.
Claim 21
Dependent Claim
21 words
An optical maser material comprising a polymerized ethylenically unsaturated monomer having distributed therein in solid solution a rare earth metal chelate.
Claim 22
Dependent Claim
24 words
An optical maser material comprising a polymerized ethylenically unsaturated monomer having distributed therein in solid solution a rare earth metal chelate of a beta-diketone.
Claim 23
Dependent Claim
24 words
An optical maser material comprising a polymerized ethylenically unsaturated monomer having distributed therein in solid solution a rare earth metal chelate of a beta-diketone.
Claim 24
Dependent Claim
24 words
An optical maser material comprising a polymerized ethylenically unsaturated monomer having distributed therein in solid solution a rare earth metal chelate of a hydroxyaldehyde.
Claim 25
Dependent Claim
24 words
An optical maser material comprising a polymerized ethylenically unsaturated monomer having distributed therein in solid solution a rare earth metal chelate of a hydroxyaldehyde.
Claim 26
Dependent Claim
25 words
An optical maser material comprising a polymerized ethylenically unsaturated monomer having distributed therein in solid solution a rare earth metal chelate of a hydroxycarboxylic acid.
Claim 27
Dependent Claim
25 words
An optical maser material comprising a polymerized ethylenically unsaturated monomer having distributed therein in solid solution a rare earth metal chelate of a hydroxycarboxylic acid.
Claim 28
Dependent Claim
38 words
An optical maser material comprising a polymerized ethylenically unsaturated monomer having distributed therein in solid solution a rare earth metal chelate of a member selected from the group consisting of 8-hydroxyquinoline and its alkyl, aryl, and halo-substituted derivatives.
Claim 29
Dependent Claim
38 words
An optical maser material comprising a polymerized ethylenically unsaturated monomer having distributed therein in solid solution a rare earth metal chelate of a member selected from the group consisting of 8-hydroxyquinoline and its alkyl, aryl, and halo-substituted derivatives.
Claim 30
Dependent Claim
25 words
A material exhibiting narrow-line fluorescence when excited by a high energy light source, comprising an europium chelate dispersed in solid solution in a plastic host.
Claim 31
Dependent Claim
25 words
A material exhibiting narrow-line fluorescence when excited by a high energy light source, comprising an europium chelate dispersed in solid solution in a plastic host.
Claim 32
Dependent Claim
14 words
The invention according to claim 16 wherein said plastic host is a polymeric matrix.
Claim 33
Dependent Claim
13 words
The invention according to claim 17 wherein said polymeric matrix is polymethyl methacrylate.
Claim 34
Dependent Claim
24 words
The invention according to claim 18 wherein said chelate of europium comprises europium ions in an organic complex formed by chelation with a beta-diketone.
Claim 35
Dependent Claim
16 words
The invention according to claim 19 wherein said material is in the form of a rod.
Claim 36
Dependent Claim
35 words
For use in generating coherent radiation by stimulated emission, a member comprising rare earth ions bonded to organic molecules in the form of an organometallic chelate, dispersed in solid solution in a plastic host material.
Claim 37
Dependent Claim
35 words
For use in generating coherent radiation by stimulated emission, a member comprising rare earth ions bonded to organic molecules in the form of an organometallic chelate, dispersed in solid solution in a plastic host material.
References Cited (Backward Citations)
US3225307A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-18 | 1981-01-17 | 1981-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-18 | 1985-01-17 | 1985-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-18 | 1989-01-17 | 1989-07-19 | $7700.00 | Window Closed / Lapsed |