US2912390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic resin from dihaloalkyl xylene and polyalkylene polyamines
Assignee: PPG Industries Inc
•
Filing: 1956-05-08
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Granted: 1959-11-10
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Expires: 1976-05-08
Abstract
No abstract record available.
Inventors
- 👤 John J Jaruzelski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:07
CPC Classifications
B; B01; B01J; B01J41/00; B01J41/08; B01J41/12; B01J41/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
AN ION EXCHANGE RESIN WHICH IS THE PRODUCT OF REACTION OF TETRAETHYLENE PENTAMINE AND DICHLOROMETHYL XYLENE, THE TETRAETHYLENE PENTAMINE BEING PRESENT IN A RATIO OF ABOUT 0.65 MOLE PER 0.33 MOLE OF THE DICHLOROMETHYL XYLENE, THE REACTION BEING BETWEEN THE AMINE GROUP FO THE TETRAETHYLENE PENTAMINE AND THE CHLORINE GROUPS OF THE DICHLOROMETHYL XYLENE.
Claim 2
Dependent Claim
54 words
AN ION EXCHANGE RESIN WHICH IS THE PRODUCT OF REACTION OF TETRAETHYLENE PENTAMINE AND DICHLOROMETHYL XYLENE, THE TETRAETHYLENE PENTAMINE BEING PRESENT IN A RATIO OF ABOUT 0.65 MOLE PER 0.33 MOLE OF THE DICHLOROMETHYL XYLENE, THE REACTION BEING BETWEEN THE AMINE GROUP FO THE TETRAETHYLENE PENTAMINE AND THE CHLORINE GROUPS OF THE DICHLOROMETHYL XYLENE.
References Cited (Backward Citations)
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Cited
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Cited
US2469693A
Cited
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Cited
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Cited
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Cited
US2732352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |