Patent US1548087A successfully refreshed from Google Patents.
US2665291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal xanthates of the haloaryloxyalkanols
Assignee: Dow Chemical Co
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Filing: 1951-06-29
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Granted: 1954-01-05
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Expires: 1971-06-29
Abstract
No abstract record available.
Inventors
- 👤 Fischback Bryant Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:36
CPC Classifications
C; C07; C07C; C07C329/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A METAL XANTHATE OF A HALOARYLOXY LOWER ALKANOL; WHEREIN THE METAL IS SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, COPPER, ZINC, AND THE ALKALI AND ALKALINE EARTH METALS AND HALOGEN IS SELECTED FROM THE GROUP CONSISTING OF BROMINE AND CHLORINE.
Claim 2
Dependent Claim
40 words
A METAL XANTHATE OF A HALOARYLOXY LOWER ALKANOL; WHEREIN THE METAL IS SELECTED FROM THE GROUP CONSISTING OF ALUMINUM, COPPER, ZINC, AND THE ALKALI AND ALKALINE EARTH METALS AND HALOGEN IS SELECTED FROM THE GROUP CONSISTING OF BROMINE AND CHLORINE.
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) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |