US2806843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclodiene sulfo-resin and process of preparing the same
Assignee: Carter Bell Manufacturing Co
•
Filing: 1953-04-01
•
Granted: 1957-09-17
•
Expires: 1973-04-01
Abstract
No abstract record available.
Inventors
- 👤 Welch Lester Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:07
CPC Classifications
C; C08; C08G; C08G75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A THERMOPLASTIC RESIN OBTAINED BY HEATING AT A TEMPERATURE BETWEEN ABOUT 280* AND 350*F. A MIXTURE OF 30 TO 300 PARTS OF SULFUR AND 100 PARTS OF AN UNSATURATED HYDROCARBON MATERIAL CONSISTING OF A CYCLIC DIOLEFIN SELECTED FROM THE GROUP CONSISTING OF MONOMER, DIMER, TRIMER, TETRAMER, AND PENTAMER OF CYCLOPENTADIENE AND METHYLCYCLOPENTADIENE, RESPECTIVELY, AND MIXTURES THEREOF.
Claim 2
Dependent Claim
56 words
A THERMOPLASTIC RESIN OBTAINED BY HEATING AT A TEMPERATURE BETWEEN ABOUT 280* AND 350*F. A MIXTURE OF 30 TO 300 PARTS OF SULFUR AND 100 PARTS OF AN UNSATURATED HYDROCARBON MATERIAL CONSISTING OF A CYCLIC DIOLEFIN SELECTED FROM THE GROUP CONSISTING OF MONOMER, DIMER, TRIMER, TETRAMER, AND PENTAMER OF CYCLOPENTADIENE AND METHYLCYCLOPENTADIENE, RESPECTIVELY, AND MIXTURES THEREOF.
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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) | 1960-09-16 | 1961-03-18 | 1961-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-16 | 1965-03-18 | 1965-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-16 | 1969-03-18 | 1969-09-17 | $7700.00 | Window Closed / Lapsed |