US3370105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for manufacture of impact polymers
Assignee: De Bell and Richardson Inc
•
Filing: 1963-05-07
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Granted: 1968-02-20
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Expires: 1983-05-07
Abstract
No abstract record available.
Inventors
- 👤 Bell John M De
- 👤 Roy A White
- 👤 Paul L Tarko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:45
CPC Classifications
C; C08; C08F; C08F291/00; C08F291/02; C08F279/00; C08F279/02; Y; Y10; Y10S; Y10S525/00; Y10S525/942
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
METHOD OF MAKING GRANULAR RUBBER-BASED ETHYLENIC IMPACT POLYMERS IN GRANULAR FORM WHICH COMPRISES ADDING TO A LIQUID SUSPENDING SYSTEM A RUBBER LATEX AND CATALYZED MONOMER, PARTIALLY COAGULATING THE DISPERSE PHASE TO OBTAIN SUSPENSION SIZE PARTICLES AND POLYMERIZING.
Claim 2
Dependent Claim
37 words
METHOD OF MAKING GRANULAR RUBBER-BASED ETHYLENIC IMPACT POLYMERS IN GRANULAR FORM WHICH COMPRISES ADDING TO A LIQUID SUSPENDING SYSTEM A RUBBER LATEX AND CATALYZED MONOMER, PARTIALLY COAGULATING THE DISPERSE PHASE TO OBTAIN SUSPENSION SIZE PARTICLES AND POLYMERIZING.
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) | 1971-02-19 | 1971-08-21 | 1972-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-19 | 1975-08-21 | 1976-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-19 | 1979-08-21 | 1980-02-20 | $7700.00 | Window Closed / Lapsed |