Patent US3499047A successfully refreshed from Google Patents.
US3499047A
Expired / Lapsed
US
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Stabilized compositions
Assignee: PPG Industries Inc
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Filing: 1958-02-03
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Granted: 1970-03-03
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Expires: 1978-02-03
Abstract
No abstract record available.
Inventors
- 👤 Charles L Cormany
- 👤 William R Dial
- 👤 Blaine O Pray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:49
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/02; C23G5/028; C23G5/02854; C23G5/02893; C07; C07C; C07C17/00; C07C17/38; C07C17/42; C23G5/02883; C11; C11D; C11D7/00; C11D7/22; C11D7/28; C11D7/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
METHYLCHLOROFORM CONTAINING FROM 0.05 TO 5 PERCENT ACRYLONITRILE BY WEIGHT.
Claim 2
Dependent Claim
10 words
METHYLCHLOROFORM CONTAINING FROM 0.05 TO 5 PERCENT ACRYLONITRILE BY WEIGHT.
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) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |