Patent US3347802A successfully refreshed from Google Patents.
US3347802A
Expired / Lapsed
US
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Water soluble polymer of diglycidyl ether and an alkylenediamine hydrohalide
Assignee: Dow Chemical Co
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Filing: 1964-07-31
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Granted: 1967-10-17
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Expires: 1984-07-31
Abstract
No abstract record available.
Inventors
- 👤 Theodore L Ashby
- 👤 Clarence R Dick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:43
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/5006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A WATER SOLUBLE, CROSS-LINKED POLYMER CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OF APPROXIMATELY EQUAL MOLECULAR QUANTITIES OF DIGLYCIDYL ETHER AND AN ALKYLENE DIAMINE ADDUCT HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
28 words
A WATER SOLUBLE, CROSS-LINKED POLYMER CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OF APPROXIMATELY EQUAL MOLECULAR QUANTITIES OF DIGLYCIDYL ETHER AND AN ALKYLENE DIAMINE ADDUCT HAVING THE GENERAL FORMULA:
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |