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US4558144A Expired / Lapsed US ⏱️ 0.0 years remaining

Volatile metal complexes

Assignee: Corning Glass Works
•
Filing: 1984-10-19
•
Granted: 1985-12-10
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Expires: 2004-10-19
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Abstract

Abstract Novel adducts of magnesium and zinc β-diketonates with the bidentate ether 1,2-dimethoxyethane are disclosed which exhibit high vapor pressures upon moderate heating, and improved resistance to thermal decomposition at vaporization temperatures.

Inventors

  • 👤 Robert C. Fay
  • 👤 David A. Thompson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 15:32
CPC Classifications
C; C07; C07F; C07F3/00; C07F3/02; C23; C23C; C23C16/00; C23C16/06; C23C16/18; C07F3/003

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 21 words
The complex: M(hfa) 2 .1,2-DME wherein M is Mg or Zn, hfa is 1,1,1,5,5,5-hexafluoro-2,4-pentanedionate, and 1,2-DME is the neutral 1,2-dimethoxyethane ligand.
Claim 2
Dependent Claim 21 words
The complex: M(hfa) 2 .1,2-DME wherein M is Mg or Zn, hfa is 1,1,1,5,5,5-hexafluoro-2,4-pentanedionate, and 1,2-DME is the neutral 1,2-dimethoxyethane ligand.
Claim 3
Dependent Claim 11 words
A complex in accordance with claim 1 wherein M is Mg.
Claim 4
Dependent Claim 11 words
A complex in accorance with claim 1 wherein M is Zn.

References Cited (Backward Citations)

US4015980A Cited
US4424352A Cited
US4425281A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-12-09 1989-06-10 1989-12-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-12-09 1993-06-10 1993-12-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-12-09 1997-06-10 1997-12-10 $7700.00 Window Closed / Lapsed

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