US3099643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polysulfide rubber and method of making the same
Assignee: ATK Launch Systems LLC
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Filing: 1959-10-01
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Granted: 1963-07-30
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Expires: 1979-10-01
Abstract
No abstract record available.
Inventors
- 👤 Morris B Berenbaum
- 👤 Norman A Rosenthal
- 👤 Hans Z Lecher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:34
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/14; C08G75/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
55 words
A METHOD OF MAKING A POLYSULFIDE POLYMER HAVING IMPROVED LOW TEMPERATURE PROPERTIES WHICH COMPRISES REACTING AT LEAST ONE DIHALIDE OF THE FORMULA C12H24X3 WHEREIN X IS A HALOGEN ATOM, WITH AN AQUEOUS ALKALI METAL POLYSULFIDE TO FORM A RUBBERY POLYMER ESSENTIALLY COMPOSED OF C12H24 GROUPS BEING ETHYL-SUBSTITUED ALKYLLINKAGES, SAID C12H24 GROUPS BEING ETHYL-SUBSTITUTED ALKYLENE GROUPS.
Claim 2
Independent Claim
55 words
A METHOD OF MAKING A POLYSULFIDE POLYMER HAVING IMPROVED LOW TEMPERATURE PROPERTIES WHICH COMPRISES REACTING AT LEAST ONE DIHALIDE OF THE FORMULA C12H24X3 WHEREIN X IS A HALOGEN ATOM, WITH AN AQUEOUS ALKALI METAL POLYSULFIDE TO FORM A RUBBERY POLYMER ESSENTIALLY COMPOSED OF C12H24 GROUPS BEING ETHYL-SUBSTITUED ALKYLLINKAGES, SAID C12H24 GROUPS BEING ETHYL-SUBSTITUTED ALKYLENE GROUPS.
Claim 3
Dependent Claim
46 words
A RUBBERY POLYSULFIDE POLYMER ESSENTIALLY WHOLLY COMPOSED OF RECURRING RSN GROUPS INTERCONNECTED THROUGH THEIR SULFUR ATOMS TO FORM POLYSULFIDE LINKAHES "N BEING AN INTEGER FROM 2 TO 4 AND "R" BEING AN ALIPHATIC HYDROCARBON RADICAL HAVING 12 CARBON AROMS, SAID HYDROCARBON RADICALS BEING ETHYL-SUBSTITUTED ALKYLENE GROUPS.
Claim 4
Dependent Claim
46 words
A RUBBERY POLYSULFIDE POLYMER ESSENTIALLY WHOLLY COMPOSED OF RECURRING RSN GROUPS INTERCONNECTED THROUGH THEIR SULFUR ATOMS TO FORM POLYSULFIDE LINKAHES "N BEING AN INTEGER FROM 2 TO 4 AND "R" BEING AN ALIPHATIC HYDROCARBON RADICAL HAVING 12 CARBON AROMS, SAID HYDROCARBON RADICALS BEING ETHYL-SUBSTITUTED ALKYLENE GROUPS.
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) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |