Patent US3029222A successfully refreshed from Google Patents.
US3029222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interpolymers of methyl methacrylate, alpha-methylstyrene and butadiene elastomers and process of preparing the same
Assignee: Individual
•
Filing: 1958-09-22
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Granted: 1962-04-10
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Expires: 1978-09-22
Abstract
No abstract record available.
Inventors
- 👤 Briskin Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:23
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02; C08F279/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A COMPOSITION OF MATTER COMPRISING AN INTERPOLYMER, SAID INTERPOLYMER BEING THE POLYMERIZATION PRODUCT OF 1 TO 55 PARTS BY WEIGHT OF ALPHA-METHYLSTYRENE, 99 TO 45 PARTS BY WEIGHT OF METHYL METHACYLATE, AND 1 TO 20 PARTS BY WEIGHT OF A RUBBERY BUTADIENE POLYMER.
Claim 2
Dependent Claim
43 words
A COMPOSITION OF MATTER COMPRISING AN INTERPOLYMER, SAID INTERPOLYMER BEING THE POLYMERIZATION PRODUCT OF 1 TO 55 PARTS BY WEIGHT OF ALPHA-METHYLSTYRENE, 99 TO 45 PARTS BY WEIGHT OF METHYL METHACYLATE, AND 1 TO 20 PARTS BY WEIGHT OF A RUBBERY BUTADIENE POLYMER.
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) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |