Patent US5341310A successfully refreshed from Google Patents.
US2736695A
Expired / Lapsed
US
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Process for preparing trichloroacetyl chloride
Assignee: Honeywell International Inc
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Filing: 1951-06-05
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Granted: 1956-02-28
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Expires: 1971-06-05
Abstract
No abstract record available.
Inventors
- 👤 John D Calfee
- 👤 Jr Thomas A Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:03
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PROCESS FOR PREPARING TRICHLOROACETYL CHLORIDE, WHICH COMPRISES CONTINUOUSLY MIXING TETRACHLOROETHYLENE VAPOR AND AIR IN THE ABSENCE OF ELEMENTAL CHLORINE IN THE PROPORTION OF 1 PART OF TETRACHLOROETHYLENE BY VOLUME TO BETWEEN ABOUT 1 PART AND ABOUT 6 PARTS OF AIR, AND CONTINUOUSLY PASSING THE RESULTING MIXTURE THROUGH A ZONE OF EXPOSURE TO ACTINIC RADIATION, SAID EXPOSURE ENDURING FOR A RESIDENCE TIME OF NOT MORE THAN ABOUT 3.3 MINUTES.
Claim 2
Dependent Claim
69 words
A PROCESS FOR PREPARING TRICHLOROACETYL CHLORIDE, WHICH COMPRISES CONTINUOUSLY MIXING TETRACHLOROETHYLENE VAPOR AND AIR IN THE ABSENCE OF ELEMENTAL CHLORINE IN THE PROPORTION OF 1 PART OF TETRACHLOROETHYLENE BY VOLUME TO BETWEEN ABOUT 1 PART AND ABOUT 6 PARTS OF AIR, AND CONTINUOUSLY PASSING THE RESULTING MIXTURE THROUGH A ZONE OF EXPOSURE TO ACTINIC RADIATION, SAID EXPOSURE ENDURING FOR A RESIDENCE TIME OF NOT MORE THAN ABOUT 3.3 MINUTES.
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) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |