US3287448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of 1-hydroxymethyl-4-phospha-3, 5, 8-trioxabicyclo [2.2.2] octane-4-sulfide and its alkoxylated derivatives
Assignee: Olin Corp
•
Filing: 1963-04-22
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Granted: 1966-11-22
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Expires: 1983-04-22
Abstract
No abstract record available.
Inventors
- 👤 Rudi F W Ratz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:14
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6571; C07F9/657109; C07F9/657145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
ORGANIC PHOSPHOROUS COMPOUNDS HAVING THE FORMULA
Claim 2
Dependent Claim
6 words
ORGANIC PHOSPHOROUS COMPOUNDS HAVING THE FORMULA
References Cited (Backward Citations)
US2637644A
Cited
DE935547C
Cited
US3004980A
Cited
US3044865A
Cited
US3038001A
Cited
US3033887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |