Patent US3352948A successfully refreshed from Google Patents.
US3352948A
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Omicron, omicron-diesters of amino phosphonic acids
Assignee: Standard Oil Co
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Filing: 1964-12-08
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Granted: 1967-11-14
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Expires: 1984-12-08
Abstract
No abstract record available.
Inventors
- 👤 Fred K Kawahara
- 👤 Russell H Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:20
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2608; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C07F9/547; C07F9/655; C07F9/65515
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A COMPOUND OF THE FORMULA: (H5C2-O)2-P(=O)-C(-CH3)2-NH-(CH2)3-NH-C18H35
Claim 2
Dependent Claim
6 words
A COMPOUND OF THE FORMULA: (H5C2-O)2-P(=O)-C(-CH3)2-NH-(CH2)3-NH-C18H35
References Cited (Backward Citations)
US2635112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |