US3360599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of coherent block copolymer films of high tensile strength and extensibility
Assignee: Shell USA Inc
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Filing: 1963-11-06
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Granted: 1967-12-26
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Expires: 1983-11-06
Abstract
No abstract record available.
Inventors
- 👤 David D Nyberg
- 👤 Joseph T Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:21
CPC Classifications
B; B29; B29D; B29D7/00; B29D7/01; C; C08; C08F; C08F8/00; C08F8/04; C08L; C08L53/00; C08L53/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
IN THE PROCESS OF PREPARING FILMS HAVING IMPROVED TENSILE STRENGTH FROM A LATEX OF HYDROCARBON BLOCK COPOLYMERS HAVING THE GENERAL CONFIGURATION
Claim 2
Dependent Claim
21 words
IN THE PROCESS OF PREPARING FILMS HAVING IMPROVED TENSILE STRENGTH FROM A LATEX OF HYDROCARBON BLOCK COPOLYMERS HAVING THE GENERAL CONFIGURATION
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) | 1970-12-25 | 1971-06-26 | 1971-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-25 | 1975-06-26 | 1975-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-25 | 1979-06-26 | 1979-12-26 | $7700.00 | Window Closed / Lapsed |