Patent US2666778A successfully refreshed from Google Patents.
US2666778A
Expired / Lapsed
US
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Method for the synthesis of organic phosphates
Assignee: Individual
•
Filing: 1950-05-10
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Granted: 1954-01-19
•
Expires: 1970-05-10
Abstract
No abstract record available.
Inventors
- 👤 George M Steinberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:49
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
A METHOD OF FORMING AN ORGANIC PHOSPHATE OF THE FORMULA
Claim 2
Independent Claim
10 words
A METHOD OF FORMING AN ORGANIC PHOSPHATE OF THE FORMULA
References Cited (Backward Citations)
US2176416A
Cited
US2394829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |