US3317490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel interpolymer and its preparation
Assignee: PPG Industries Inc
•
Filing: 1963-04-26
•
Granted: 1967-05-02
•
Expires: 1983-04-26
Abstract
No abstract record available.
Inventors
- 👤 Dowbenko Rostyslaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:27
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
AN INTERPOLYMER OF 1,5-CYCLOOCTADIENE AND SULFURYL CHLORIDE CONSISTING ESSENTIALLY OF RECURRING UNITS OF THE STRUCTURE:
Claim 2
Dependent Claim
15 words
AN INTERPOLYMER OF 1,5-CYCLOOCTADIENE AND SULFURYL CHLORIDE CONSISTING ESSENTIALLY OF RECURRING UNITS OF THE STRUCTURE:
References Cited (Backward Citations)
US2258702A
Cited
US3133903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |