US3875199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal 1,2 dithiolenes
Assignee: Polaroid Corp
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Filing: 1972-05-08
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Granted: 1975-04-01
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Expires: 1992-05-08
Abstract
Abstract A metal complex of the formula: WHEREIN Me is selected from the group consisting of metals of the first, second, and third transition metal series which will provide a complex that is an effective infrared absorber and which is effectively transparent to light in the visible region of the spectrum; and each R is selected from the group consisting of alkyl, aromatic, heterocyclic and nuclearly substituted aromatic and heterocyclic rings, provided that at least two of said R moieties are different.
Inventors
- 👤 Stanley Morton Bloom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:15
CPC Classifications
C; C07; C07C; C07C323/00; C07C321/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
11 words
A COMPOUND OF THE FOLLOWING FORMULA: (PHENYL-C(-S(-))=C(-S(-))-)BENZENE . NI(+2) . 1-((4-(CH3-O-)PHENYL)-C(-S(-))=C(-S(-))-),4-(CH3-O-)BENZENE
Claim 2
Dependent Claim
11 words
A COMPOUND OF THE FOLLOWING FORMULA: (PHENYL-C(-S(-))=C(-S(-))-)BENZENE . NI(+2) . 1-((4-(CH3-O-)PHENYL)-C(-S(-))=C(-S(-))-),4-(CH3-O-)BENZENE
Claim 3
Dependent Claim
6 words
A compound of the following formula:
Claim 4
Dependent Claim
6 words
A compound of the following formula:
Claim 5
Dependent Claim
6 words
A compound of the following formula:
Claim 6
Dependent Claim
6 words
A compound of the following formula:
Claim 7
Dependent Claim
6 words
A compound of the following formula:
Claim 8
Dependent Claim
6 words
A compound of the following formula:
Claim 9
Dependent Claim
6 words
A compound of the following formula:
Claim 10
Dependent Claim
6 words
A compound of the following formula:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |