Patent US4653244A successfully refreshed from Google Patents.
US3299152A
Expired / Lapsed
US
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Preparation of alpha, omegadichloroolefin
Assignee: Toyo Koatsu Industries Inc
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Filing: 1962-10-11
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Granted: 1967-01-17
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Expires: 1982-10-11
Abstract
No abstract record available.
Inventors
- 👤 Inaba Yanosuke
- 👤 Kimura Goro
- 👤 Uematsu Takushi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:16
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
PROCESS FOR MAKING ALPHA, OMEGA-DIHALOOLEFINS COMPRISING CONTACTING A TRIHALOALKANE OF THE FORMULA:
Claim 2
Dependent Claim
12 words
PROCESS FOR MAKING ALPHA, OMEGA-DIHALOOLEFINS COMPRISING CONTACTING A TRIHALOALKANE OF THE FORMULA:
References Cited (Backward Citations)
US2410541A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |