US3037967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers of dimercaptobicyclo-[2.2.1] heptanes and sulfur
Assignee: Phillips Petroleum Co
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Filing: 1959-03-31
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Granted: 1962-06-05
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Expires: 1979-03-31
Abstract
No abstract record available.
Inventors
- 👤 Rector P Louthan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:57
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A MOLDABLE, YET BRITTLE, POLYMER HAVING A PLEASING GOLDEN COLOR DERIVED BY HEATING A SOLUTION OF A DITHIOL SELECTED FROM THE GROUP CONSISTING OF 2,5-DIMERCAPTOBICYCLO(2.2.1)HEPTANE AND 2,6-DIMERCAPTOBICYCOL(2.2.1)HEPTANE WITH SULFUR WHILE ADDING AN AMINE CATALYST AND OBTAINING EVOLUTIONS OF HYDROGEN SULFIDE AND THEN PROVIDING TIME FOR COMPLETION OF POLYMERIZATION.
Claim 2
Dependent Claim
48 words
A MOLDABLE, YET BRITTLE, POLYMER HAVING A PLEASING GOLDEN COLOR DERIVED BY HEATING A SOLUTION OF A DITHIOL SELECTED FROM THE GROUP CONSISTING OF 2,5-DIMERCAPTOBICYCLO(2.2.1)HEPTANE AND 2,6-DIMERCAPTOBICYCOL(2.2.1)HEPTANE WITH SULFUR WHILE ADDING AN AMINE CATALYST AND OBTAINING EVOLUTIONS OF HYDROGEN SULFIDE AND THEN PROVIDING TIME FOR COMPLETION OF POLYMERIZATION.
References Cited (Backward Citations)
US2466963A
Cited
US2866776A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-04 | 1965-12-04 | 1966-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-04 | 1969-12-04 | 1970-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-04 | 1973-12-04 | 1974-06-05 | $7700.00 | Window Closed / Lapsed |