US3361831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorine-containing surface active agents
Assignee: Ecolab Inc
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Filing: 1963-08-07
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Granted: 1968-01-02
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Expires: 1983-08-07
Abstract
No abstract record available.
Inventors
- 👤 Brunelle Thomas Eugene
- 👤 Rue Larry Monroe
- 👤 Crecelius Samuel Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:53
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/22; C08G65/24; C11; C11D; C11D1/00; C11D1/66; C11D1/72; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A COMPOSITION OF MATTER COMPRISING A COPOLYMER OF EPICHLOROHYDRIN AND AN EPOXY COMPOUND SELECTED FROM THE GROUP CONSISTING OF ETHYLENE OXIDE, PROPYLENE OXIDE, BUTYLENE OXIDE AND STYRENE OXIDE, SAID COPOLYMER HAVING A MOLECULAR WEIGHT IN THE RANGE FROM ABOUT 1200 TO 1500 AS DETERMINED BY HYDROXYL NUMBER, SAID COPOLYMER BEING FURTHER REACTED THROUGH AN OXY LINKAGE WITH OXYETHYLENE GROUPS WITH THE OXYETHYLENE GROUPS CONSTITUTING FROM ABOUT 40 TO 70% BY WEIGHT OF THE FINAL COMPOSITION AND THE MOLECULAR WEIGHT OF THE FINAL COMPOSITION RANGING FROM ABOUT 1800 TO 3700 AS DETERMINED BY HYDROXYL NUMBER.
Claim 2
Dependent Claim
94 words
A COMPOSITION OF MATTER COMPRISING A COPOLYMER OF EPICHLOROHYDRIN AND AN EPOXY COMPOUND SELECTED FROM THE GROUP CONSISTING OF ETHYLENE OXIDE, PROPYLENE OXIDE, BUTYLENE OXIDE AND STYRENE OXIDE, SAID COPOLYMER HAVING A MOLECULAR WEIGHT IN THE RANGE FROM ABOUT 1200 TO 1500 AS DETERMINED BY HYDROXYL NUMBER, SAID COPOLYMER BEING FURTHER REACTED THROUGH AN OXY LINKAGE WITH OXYETHYLENE GROUPS WITH THE OXYETHYLENE GROUPS CONSTITUTING FROM ABOUT 40 TO 70% BY WEIGHT OF THE FINAL COMPOSITION AND THE MOLECULAR WEIGHT OF THE FINAL COMPOSITION RANGING FROM ABOUT 1800 TO 3700 AS DETERMINED BY HYDROXYL NUMBER.
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) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |