US3239488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1:5 diene linear copolymers
Assignee: PENINSULAR CHEMRES Inc
•
Filing: 1962-04-02
•
Granted: 1966-03-08
•
Expires: 1982-04-02
Abstract
No abstract record available.
Inventors
- 👤 George B Butler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:03
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/20; C08G75/205; C08G75/22; C08F; C08F36/00; C08F36/02; C08F36/20; C08G67/00; C08G67/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
LINEAR FILM AND FIBER-FORMING COPOLYMERS CONSISTING ESSENTIALLY OF REPEATING UNITS HAVING THE STRUCTURE:
Claim 2
Dependent Claim
13 words
LINEAR FILM AND FIBER-FORMING COPOLYMERS CONSISTING ESSENTIALLY OF REPEATING UNITS HAVING THE STRUCTURE:
References Cited (Backward Citations)
US2914511A
Cited
US3133903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |