Patent US2956876A successfully refreshed from Google Patents.
Patent US2988558A successfully refreshed from Google Patents.
US2988558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trialkyl 9(10)-phosphonostearates
Assignee: Individual
•
Filing: 1959-05-19
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Granted: 1961-06-13
•
Expires: 1979-05-19
Abstract
No abstract record available.
Inventors
- 👤 Swern Daniel
- 👤 Sasin Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:33
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/53
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
A COMPOUND HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
6 words
A COMPOUND HAVING THE GENERAL FORMULA
Claim 3
Dependent Claim
10 words
A PROCESS COMPRISING REACTING AN ALKYL OLEATE HAVING THE FORMULA
Claim 4
Dependent Claim
10 words
A PROCESS COMPRISING REACTING AN ALKYL OLEATE HAVING THE FORMULA
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) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |