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US4945176A
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Novel fluorinated laser dyes
Assignee: United States Department of Energy
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Filing: 1989-06-08
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Granted: 1990-07-31
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Expires: 2009-06-08
Abstract
Abstract A novel class of dye is disclosed which is particularly efficient and stable for dye layer applications, lasing between 540 and 570 nm.
Inventors
- 👤 Peter R. Hammond
- 👤 James F. Feeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:09
CPC Classifications
C; C09; C09B; C09B11/00; C09B11/04; C09B11/10; C09B11/22; C07; C07D; C07D311/00; C07D311/02; C07D311/78; C07D311/80; C07D311/82
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
34 words
A compound of the formula ##STR3## wherein R is hydrogen or linear or branched alkyl of 1 to 10 carbon atoms, n is an integer from 1 to 4, and X is an anion.
Claim 2
Dependent Claim
34 words
A compound of the formula ##STR3## wherein R is hydrogen or linear or branched alkyl of 1 to 10 carbon atoms, n is an integer from 1 to 4, and X is an anion.
Claim 3
Dependent Claim
12 words
A compound according to claim 1 wherein n is 1 or 2.
Claim 4
Dependent Claim
16 words
A compound according to claim 2 wherein R is alkyl of 1 to 4 carbon atoms.
Claim 5
Dependent Claim
10 words
A compound according to claim 3 wherein R is methyl.
Claim 6
Dependent Claim
10 words
A compound according to claim 4 wherein n is 1.
Claim 7
Dependent Claim
10 words
A compound according to claim 4 wherein n is 2.
Claim 8
Dependent Claim
10 words
A compound according to claim 5 wherein X is fluoroborate.
Claim 9
Dependent Claim
10 words
A compound according to claim 6 wherein X is fluoroborate.
References Cited (Backward Citations)
SU952925A1
Cited
DE3531272A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-07-30 | 1994-01-29 | 1994-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-30 | 1998-01-29 | 1998-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-30 | 2002-01-29 | 2002-07-31 | $7700.00 | Window Closed / Lapsed |