Patent US1008641A successfully refreshed from Google Patents.
US2866828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of dihalobenzenes
Assignee: Honeywell International Inc
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Filing: 1953-09-04
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Granted: 1958-12-30
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Expires: 1973-09-04
Abstract
No abstract record available.
Inventors
- 👤 John A Crowder
- 👤 Everett E Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:41
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/23
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
THE METHOD OF PREPARING METADIHALOBENZENE WHICH COMPRISES REACTING A CHARGE MATERIAL SELECTED FROM THE GROUP CONSISTING OF 1,2,4-HOMOTRIHALOBENZENE AND 1,3,5HOMOTRIHALOBENZENE WITH AN APPROCIMATELY EQIMOLAR AMOUNT OF HYDROGEN IN THE PRESENCE OF AN ACTIVE HYDROGENERATION CATALYST SELECTED FROM THE GROUP CONSISTING OF PLATINUM, PALLADIUM, NICKEL, NICKEL CHROMITE, AND COPPER CHROMITE, SAID REACTION BEING CONDUCTED AT TEMPERATURE BETWEEN THE BOILING POINT OF SAID CHARGE MATERIAL AND 600*
Claim 2
Independent Claim
65 words
THE METHOD OF PREPARING METADIHALOBENZENE WHICH COMPRISES REACTING A CHARGE MATERIAL SELECTED FROM THE GROUP CONSISTING OF 1,2,4-HOMOTRIHALOBENZENE AND 1,3,5HOMOTRIHALOBENZENE WITH AN APPROCIMATELY EQIMOLAR AMOUNT OF HYDROGEN IN THE PRESENCE OF AN ACTIVE HYDROGENERATION CATALYST SELECTED FROM THE GROUP CONSISTING OF PLATINUM, PALLADIUM, NICKEL, NICKEL CHROMITE, AND COPPER CHROMITE, SAID REACTION BEING CONDUCTED AT TEMPERATURE BETWEEN THE BOILING POINT OF SAID CHARGE MATERIAL AND 600*
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) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |