Patent US2541748A successfully refreshed from Google Patents.
US2541748A
Expired / Lapsed
US
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Tough, boardy thermoplastics
Assignee: Uniroyal Inc
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Filing: 1942-12-09
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Granted: 1951-02-13
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Expires: 1962-12-09
Abstract
No abstract record available.
Inventors
- 👤 Lawrence E Daly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:16
CPC Classifications
C; C08; C08L; C08L9/00; C08L9/06; C08L21/00; Y; Y10; Y10S; Y10S36/00; Y10S36/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A HARD BOARDY THERMOPLASTIC WHICH IS THE CONVERSION PRODUCT OF HEAT AND VULCANIZATION AT A TEMPERATURE OF FROM ABOUT 200* FL TO ABOUT 300* F. OF A MIX COMPOSED ESSENTIALLY OF A VULCANIZABLE ELASTIC RUBBER, A CURING AGENT SUFFICIENT IN AMOUNT OT CURE SAID RUBBER TO A CONDITION RANGING FROM A SOFT TO A SEMI-HARD VULCANIZED STATE, AND A NORMALLY SOLID THERMOPLASTIC HARD INELASTIC RESINOUS POLYMERIZATION PRODUCT DERIVED FROM POLYMERIZING A COMPOSITION COMPRISING BUTADIENE AND STYURENE, THE PROPORTION BY WEIGHT OF THE HARD RESINOUS PRODUCT RANGING FROM 100 PERCENT TO 900 PERCENT BASED ON THE ELASTIC RUBBER.
Claim 2
Dependent Claim
97 words
A HARD BOARDY THERMOPLASTIC WHICH IS THE CONVERSION PRODUCT OF HEAT AND VULCANIZATION AT A TEMPERATURE OF FROM ABOUT 200* FL TO ABOUT 300* F. OF A MIX COMPOSED ESSENTIALLY OF A VULCANIZABLE ELASTIC RUBBER, A CURING AGENT SUFFICIENT IN AMOUNT OT CURE SAID RUBBER TO A CONDITION RANGING FROM A SOFT TO A SEMI-HARD VULCANIZED STATE, AND A NORMALLY SOLID THERMOPLASTIC HARD INELASTIC RESINOUS POLYMERIZATION PRODUCT DERIVED FROM POLYMERIZING A COMPOSITION COMPRISING BUTADIENE AND STYURENE, THE PROPORTION BY WEIGHT OF THE HARD RESINOUS PRODUCT RANGING FROM 100 PERCENT TO 900 PERCENT BASED ON THE ELASTIC RUBBER.
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) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |