US5149807A
Expired / Lapsed
US
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Oxazine laser dyes
Assignee: United States Department of Energy
•
Filing: 1991-09-18
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Granted: 1992-09-22
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Expires: 2011-09-18
Abstract
Abstract New oxazine compounds useful as dye laser media in solution, are superiior to prior art materials. The oxazine dyes useful when pumped by the 578.2 nm copper line to operate in the 700-800 nm range are described by formula I ##STR1##
Inventors
- 👤 Peter R. Hammond
- 👤 George F. Field
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:14
CPC Classifications
C; C07; C07D; C07D498/00; C07D498/12; C07D498/14; C07D498/22; C09; C09B; C09B19/00; H; H01; H01S; H01S3/00; H01S3/14; H01S3/20; H01S3/213
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
41 words
A compound of the formula ##STR9## wherein R 1 and R 2 are independently selected from the substituent groups consisting of linear and branched alkyl and fluoroalkyl groups of 1 to 10 carbon atoms, and wherein X - is an anion.
Claim 2
Dependent Claim
41 words
A compound of the formula ##STR9## wherein R 1 and R 2 are independently selected from the substituent groups consisting of linear and branched alkyl and fluoroalkyl groups of 1 to 10 carbon atoms, and wherein X - is an anion.
Claim 3
Dependent Claim
23 words
A compound according to claim 1 wherein said anion X - is selected from the group consisting of chloride, fluoborate, perchlorate and trifluoromethanesulfonate.
Claim 4
Dependent Claim
23 words
A compound according to claim 1 wherein said anion X - is a fluoborate and R 1 and R 2 are methyl groups.
Claim 5
Dependent Claim
12 words
A compound of the formula ##STR10## wherein X - is an anion.
Claim 6
Dependent Claim
12 words
A compound of the formula ##STR10## wherein X - is an anion.
Claim 7
Dependent Claim
24 words
A compound according to claim 4 wherein said anion X - is selected from the group consisting of chloride, and fluoborate, perchlorate and trifluoromethanesulfonate.
References Cited (Backward Citations)
US4026898A
Cited
US4202981A
Cited
GB2026014A
Cited
DE3011154A1
Cited
US4622400A
Cited
US4945176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-09-22 | 1996-03-23 | 1996-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-22 | 2000-03-23 | 2000-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-22 | 2004-03-23 | 2004-09-22 | $7700.00 | Window Closed / Lapsed |