Patent US3069406A successfully refreshed from Google Patents.
US3069406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Uniaxially oriented crystalline polymers
Assignee: Monsanto Chemicals Ltd
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Filing: 1958-10-17
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Granted: 1962-12-18
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Expires: 1978-10-17
Abstract
No abstract record available.
Inventors
- 👤 Newman Seymour
- 👤 Ezrin Myer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:51
CPC Classifications
C; C08; C08F; C08F32/00; B; B29; B29C; B29C55/00; B29C55/02; B29C55/04; B29C55/06; D; D01; D01F; D01F6/00; D01F6/02; D01F6/20; D01F6/22; B29C71/00; B29C71/02; B29K; B29K2025/00; B29K2995/00; B29K2995/0037; B29K2995/0041; Y; Y10; Y10S; Y10S264/00; Y10S264/73
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
84 words
A METHOD FOR PRODUCING UNIAXIALLY ORIENTED CRYSTALLINE POLYSTYRENE MEMBERS ADAPTED FOR FIBER USAGES WHICH ARE ESSENTIALLY INSOLUBLE IN COMMON OGANIC SOLVENTS UNDER ROOM CONDITIONS AND RETAIN ORIENTATION UP TO ABOUT 230* C., WHICH METHOD COMPRISES LONGITUDINALLY STRETCHING A SHAPED BODY OF SUBSTANTIALLY AMORPHOUS ISOTACTIC POLYSTYRENE 250-2500% AT A RATE OF GREATER THAN ABOUT 100% PER MINUTE AND A TEMPERATURE OF 85-200*C. AND THEREAFTER HEAT SETTING SAID LONGITUDINALLY STRETCHED POLYSTYRENE BODY AT A TEMPERATURE OF 100-200*C. WHILE MAINTAINING SAID STRETCHED POLYSTYRENE BODY UNDER LONGITUDINAL TENSION
Claim 2
Independent Claim
84 words
A METHOD FOR PRODUCING UNIAXIALLY ORIENTED CRYSTALLINE POLYSTYRENE MEMBERS ADAPTED FOR FIBER USAGES WHICH ARE ESSENTIALLY INSOLUBLE IN COMMON OGANIC SOLVENTS UNDER ROOM CONDITIONS AND RETAIN ORIENTATION UP TO ABOUT 230* C., WHICH METHOD COMPRISES LONGITUDINALLY STRETCHING A SHAPED BODY OF SUBSTANTIALLY AMORPHOUS ISOTACTIC POLYSTYRENE 250-2500% AT A RATE OF GREATER THAN ABOUT 100% PER MINUTE AND A TEMPERATURE OF 85-200*C. AND THEREAFTER HEAT SETTING SAID LONGITUDINALLY STRETCHED POLYSTYRENE BODY AT A TEMPERATURE OF 100-200*C. WHILE MAINTAINING SAID STRETCHED POLYSTYRENE BODY UNDER LONGITUDINAL TENSION
Claim 3
Dependent Claim
49 words
AS A COMPOSITION OF MATTER A SHAPED BODY OF UNIAXIALLY ORIENTED CRYSTALLINE POLYSTYRENE ADAPTED FOR FIBER USAGES HAVING A TENSIL STRENGTH OF GREATER THAN ABOUT 20,000 P.S.I. AND AN ELONGATION OF GREATER THAN ABOUT 10% AND WHICH RETAINS SAID ORIENTATION WHEN SUBJECTED TO A TEMPERATURE UP TO ABOUT 230*C.
Claim 4
Dependent Claim
49 words
AS A COMPOSITION OF MATTER A SHAPED BODY OF UNIAXIALLY ORIENTED CRYSTALLINE POLYSTYRENE ADAPTED FOR FIBER USAGES HAVING A TENSIL STRENGTH OF GREATER THAN ABOUT 20,000 P.S.I. AND AN ELONGATION OF GREATER THAN ABOUT 10% AND WHICH RETAINS SAID ORIENTATION WHEN SUBJECTED TO A TEMPERATURE UP TO ABOUT 230*C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |