US2601273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of cyclopentadiene
Assignee: PPG Industries Inc
•
Filing: 1950-06-08
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Granted: 1952-06-24
•
Expires: 1970-06-08
Abstract
No abstract record available.
Inventors
- 👤 Howard L Gerhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:47
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; C08F236/00; C08F236/02; C08F236/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A COPOLYMER OF 20 TO 90 PERCENT BY WEIGHT OF AN UNSATURATED GLYCERIDE OIL, 5 TO 80 PERCENT BY WEIGHT OF A MEMBER OF THE GROUP CONSISTING OF CYCLOPENTADIENE AND LOWER HOMOPOLYMERS OF CYCLOPENTADIENE AND 1 TO 50 PERCENT BY WEIGHT OF A MONOMERIC POLYMERIZABLE ETHYLENICALLY UNSATURATED COMPOUND WHICH CONTAINS A
Claim 2
Dependent Claim
51 words
A COPOLYMER OF 20 TO 90 PERCENT BY WEIGHT OF AN UNSATURATED GLYCERIDE OIL, 5 TO 80 PERCENT BY WEIGHT OF A MEMBER OF THE GROUP CONSISTING OF CYCLOPENTADIENE AND LOWER HOMOPOLYMERS OF CYCLOPENTADIENE AND 1 TO 50 PERCENT BY WEIGHT OF A MONOMERIC POLYMERIZABLE ETHYLENICALLY UNSATURATED COMPOUND WHICH CONTAINS A
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) | 1955-06-24 | 1955-12-24 | 1956-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-24 | 1959-12-24 | 1960-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-24 | 1963-12-24 | 1964-06-24 | $7700.00 | Window Closed / Lapsed |