US3317489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for polymerizing thiiranes
Assignee: Mobil Oil AS
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Filing: 1964-03-03
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Granted: 1967-05-02
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Expires: 1984-03-03
Abstract
No abstract record available.
Inventors
- 👤 Sander Manfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:12
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/02; C08G75/06; C08G75/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
41 words
A PROCESS WHICH COMPRISES HOMOPOLYMERIZING THIIRANES IN THE PRESENCE OF A POLAR ORGANIC SOLVENT HAVING A DIELECTRIC CONSTANT ABOVE ABOUT 10 (MEASURED AT 20* C.) IN ADMIXTURE WITH AN ALKALI METAL IN A HIGHLY BASIC FORM CAPABLE OF COMBINING WITH ACETONE.
Claim 2
Dependent Claim
41 words
A PROCESS WHICH COMPRISES HOMOPOLYMERIZING THIIRANES IN THE PRESENCE OF A POLAR ORGANIC SOLVENT HAVING A DIELECTRIC CONSTANT ABOVE ABOUT 10 (MEASURED AT 20* C.) IN ADMIXTURE WITH AN ALKALI METAL IN A HIGHLY BASIC FORM CAPABLE OF COMBINING WITH ACETONE.
Claim 3
Dependent Claim
34 words
A PROCESS WHICH COMPRISES HOMOPOLYMERIZING THIIRANES IN THE PRESENCE OF AN ALIPHATIC MONOKETONE HAVING A PKA VALVE ABOVE ABOUT 1J IN ADMIXTURE WITH POTASSIUM IN A HIGHLY BASIC FORM CAPABLE OF COMBINING WITH ACETONE.
Claim 4
Dependent Claim
34 words
A PROCESS WHICH COMPRISES HOMOPOLYMERIZING THIIRANES IN THE PRESENCE OF AN ALIPHATIC MONOKETONE HAVING A PKA VALVE ABOVE ABOUT 1J IN ADMIXTURE WITH POTASSIUM IN A HIGHLY BASIC FORM CAPABLE OF COMBINING WITH ACETONE.
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) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |