US3081244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for polymerizing unsaturated monomers using ionizing radiation
Assignee: Shell USA Inc
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Filing: 1961-03-15
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Granted: 1963-03-12
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Expires: 1981-03-15
Abstract
No abstract record available.
Inventors
- 👤 Vincent A Campanile
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:22
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/06; C08F261/00; C08F261/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
PROCESS FOR POLYMERIZING ETHYLENICALLY UNSATEURATED MONOMERS TO FORM HIGH MOLECULAR WEIGHT POLYMERS WHICH COMPRISES EXPOSING AN AQUEOUS MEDIUM CONTAINING THE UNSATURATED MONOMER TO BE POLYMERIZED AND FROM ABOUT .01% TO 10% BY WEIGHT OF SAID MONOMER OF A POLYSULFONIC ACID DERIVATIVE OF A POLYMER OF AN UNSATURATED ALDEHYDE TO HIGH ENERGY IONIZING RADIATION.
Claim 2
Dependent Claim
53 words
PROCESS FOR POLYMERIZING ETHYLENICALLY UNSATEURATED MONOMERS TO FORM HIGH MOLECULAR WEIGHT POLYMERS WHICH COMPRISES EXPOSING AN AQUEOUS MEDIUM CONTAINING THE UNSATURATED MONOMER TO BE POLYMERIZED AND FROM ABOUT .01% TO 10% BY WEIGHT OF SAID MONOMER OF A POLYSULFONIC ACID DERIVATIVE OF A POLYMER OF AN UNSATURATED ALDEHYDE TO HIGH ENERGY IONIZING RADIATION.
References Cited (Backward Citations)
US2836553A
Cited
US2909508A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |