US2558494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X tm x t
Assignee: —
•
Filing: —
•
Granted: 1951-06-26
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Expires: 1968-06-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:29
CPC Classifications
C; C09; C09F; C09F7/00; C09F7/06; C09F5/00; C09F5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
THE PROCESS FOR POLYMERIZING A FATTY OIL HAVING AN IODINE VALUE BELOW ABOUT 140 WHICH COMPRISES HEATING AN ADMIXTURE CONSISTING OF ABOUT EQUAL PARTS BY WEIGHT OF SAID FATTY OIL AND LIQUID ANTIMONY TRICHLORIDE AT A TEMPERATURE OF FROM ABOUT 80% C. TO ABOUT 150* C. FOR A PERIOD OF FROM ABOUT 1/2 TO ABOUT 15 HOURS.
Claim 2
Dependent Claim
57 words
THE PROCESS FOR POLYMERIZING A FATTY OIL HAVING AN IODINE VALUE BELOW ABOUT 140 WHICH COMPRISES HEATING AN ADMIXTURE CONSISTING OF ABOUT EQUAL PARTS BY WEIGHT OF SAID FATTY OIL AND LIQUID ANTIMONY TRICHLORIDE AT A TEMPERATURE OF FROM ABOUT 80% C. TO ABOUT 150* C. FOR A PERIOD OF FROM ABOUT 1/2 TO ABOUT 15 HOURS.
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) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |