US3391205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of chemical manufacture
Assignee: PPG Industries Inc
•
Filing: 1960-12-09
•
Granted: 1968-07-02
•
Expires: 1980-12-09
Abstract
No abstract record available.
Inventors
- 👤 Strain Franklin
- 👤 Paul D Bartlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:57
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/26; C07C17/272; C07C17/275; C07C17/263; C07C17/266; C07C2/00; C07C2/86; C07C2/861
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A METHOD OF PRODUCING CHEMBICAL PRODUCTS WHICH COMPRISES PASSING THROUGH AN ELEVATED TEMPERATURE ZONE AT FROM 300*C. TO 700*C. A GASEOUS STREAM COMPRISING VAPOR OF AN OLEFINICALLY UNSATURATED HYDROCARBON AND THE CARBENE WHICH IS GENERATED IN THE SAID GASEOUS STREAM BY EVOLVING HYDROGEN HALIDE FROM A SUBSTITUTED METHANE OF THE FORMULA
Claim 2
Independent Claim
51 words
A METHOD OF PRODUCING CHEMBICAL PRODUCTS WHICH COMPRISES PASSING THROUGH AN ELEVATED TEMPERATURE ZONE AT FROM 300*C. TO 700*C. A GASEOUS STREAM COMPRISING VAPOR OF AN OLEFINICALLY UNSATURATED HYDROCARBON AND THE CARBENE WHICH IS GENERATED IN THE SAID GASEOUS STREAM BY EVOLVING HYDROGEN HALIDE FROM A SUBSTITUTED METHANE OF THE FORMULA
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |