Patent US3290673A successfully refreshed from Google Patents.
Patent US3331818A successfully refreshed from Google Patents.
US3331818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High rank polysulfide polymers, process and products
Assignee: ATK Launch Systems LLC
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Filing: 1966-09-30
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Granted: 1967-07-18
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Expires: 1986-09-30
Abstract
No abstract record available.
Inventors
- 👤 Eugene R Bertozzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:32
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
76 words
A COMPOSITION OF MATTER STABLE IN AN INERT ATMOSPHERE AND CURABLE TO A SOLID ELASTIC STATE UPON EXPOSURE TO THE ATMOSPHERE COMPRISING A LIQUID POLYTHIOPOLYMERCAPTAN POLYMER HAVING IN ITS POLYMERIC CHAIN RECURRING RADICALS SELECTED FROM THE GROUP CONSISTING OF HYDROCARBON AND OXAHYDROCARBON RADICALS LINKED BY SULFUR LINKAGES WHERE AT LEAST SOME OF SAID SULFUR LINKAGES CONTAIN MORE THAN TWO SULFUR ATOMS AND THE AVERAGE SULFUR RANK OF ALL OF SAID LINKAGES IS ABOUT 1.6 TO 5.0.
Claim 2
Dependent Claim
76 words
A COMPOSITION OF MATTER STABLE IN AN INERT ATMOSPHERE AND CURABLE TO A SOLID ELASTIC STATE UPON EXPOSURE TO THE ATMOSPHERE COMPRISING A LIQUID POLYTHIOPOLYMERCAPTAN POLYMER HAVING IN ITS POLYMERIC CHAIN RECURRING RADICALS SELECTED FROM THE GROUP CONSISTING OF HYDROCARBON AND OXAHYDROCARBON RADICALS LINKED BY SULFUR LINKAGES WHERE AT LEAST SOME OF SAID SULFUR LINKAGES CONTAIN MORE THAN TWO SULFUR ATOMS AND THE AVERAGE SULFUR RANK OF ALL OF SAID LINKAGES IS ABOUT 1.6 TO 5.0.
Claim 3
Dependent Claim
71 words
A PROCESS COMPRISING REACTING, AS THE SOLE REACTANTS AND WITH CONTINUOUS AGITATION UNDER AN INERT ATMOSPHERE, SULFUR WITH A LIQUID POLYTHIOPOLYMERCAPTAN POLYMER HAVING IN ITS POLYMERIC CHAIN RECURRING RADICALS SELECTED FROM THE GROUP CONSISTING OF HYDROCARBON AND OXAHYDROCARBON RADICALS LINKED BY SULFUR LINKAGES ONLY SELECTED FROM THE GROUP CONSISTING OF -S- AND -S-S- TO FORM A LIQUID POLYTHIOPOLYMERCAPTAN POLYMER HAVING -SSH TERMINALS AND A SULFUR RANK OF ABOUT 1.6 TO 5.0.
Claim 4
Dependent Claim
71 words
A PROCESS COMPRISING REACTING, AS THE SOLE REACTANTS AND WITH CONTINUOUS AGITATION UNDER AN INERT ATMOSPHERE, SULFUR WITH A LIQUID POLYTHIOPOLYMERCAPTAN POLYMER HAVING IN ITS POLYMERIC CHAIN RECURRING RADICALS SELECTED FROM THE GROUP CONSISTING OF HYDROCARBON AND OXAHYDROCARBON RADICALS LINKED BY SULFUR LINKAGES ONLY SELECTED FROM THE GROUP CONSISTING OF -S- AND -S-S- TO FORM A LIQUID POLYTHIOPOLYMERCAPTAN POLYMER HAVING -SSH TERMINALS AND A SULFUR RANK OF ABOUT 1.6 TO 5.0.
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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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |