Patent US6719768B1 successfully refreshed from Google Patents.
US3012995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Product of a diene polymer and a halogen-containing thioketone
Assignee: EIDP Inc
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Filing: 1959-11-02
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Granted: 1961-12-12
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Expires: 1979-11-02
Abstract
No abstract record available.
Inventors
- 👤 William J Middleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:20
CPC Classifications
C; C08; C08C; C08C19/00; C08C19/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
THE REACTION PRODUCT OF (1) A LINEAR DIENE POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 1000 AND AT LEAST ONE ETHYLENIC BOND TO ABOUT 20 CHAIN CARBONS AND (2) A THIOKETONE OF THE FORMULA
Claim 2
Dependent Claim
35 words
THE REACTION PRODUCT OF (1) A LINEAR DIENE POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 1000 AND AT LEAST ONE ETHYLENIC BOND TO ABOUT 20 CHAIN CARBONS AND (2) A THIOKETONE OF THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |