US3304349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epihalohydrin reaction products of phosphorous and sulfur oxygen acids and amines
Assignee: Baker Petrolite LLC
•
Filing: 1962-12-12
•
Granted: 1967-02-14
•
Expires: 1982-12-12
Abstract
No abstract record available.
Inventors
- 👤 Shen Kwan-Ting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:48
CPC Classifications
C; C07; C07B; C07B61/00; Y; Y10; Y10S; Y10S507/00; Y10S507/935; Y10S507/936; Y10S516/00; Y10S516/01; Y10S516/07; Y10S526/00; Y10S526/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
THE ZWITTERION REACTION PRODUCT FORMED BY FIRST REACTING EPICHLOROHYDRIN WITH AN ALKALI METAL SALT OF PHOSPHOROUS ACID, PHOSPHORIC ACID, SULFUROUS ACID OR SULFURIC ACID TO OPEN THE EPOXY RING AND THEN REACTING SAID SO-FORMED PRODUCT CONTAINING THE UNREACTED CHLORINE ATOM OF EPICHLOROHYDRIN WITH DIMETHYL DODECYL AMINE.
Claim 2
Dependent Claim
46 words
THE ZWITTERION REACTION PRODUCT FORMED BY FIRST REACTING EPICHLOROHYDRIN WITH AN ALKALI METAL SALT OF PHOSPHOROUS ACID, PHOSPHORIC ACID, SULFUROUS ACID OR SULFURIC ACID TO OPEN THE EPOXY RING AND THEN REACTING SAID SO-FORMED PRODUCT CONTAINING THE UNREACTED CHLORINE ATOM OF EPICHLOROHYDRIN WITH DIMETHYL DODECYL AMINE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |