Patent US3652418A successfully refreshed from Google Patents.
US3652418A
Expired / Lapsed
US
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Tractive fluid compositions
Assignee: Monsanto Co
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Filing: 1970-05-21
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Granted: 1972-03-28
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Expires: 1990-05-21
Abstract
Abstract A composition consisting essentially of a mixture of 30-60 percent hydrogenated dicumyl, 30-60 percent tercyclohexyl and 520 percent of dicyclohexyl or alkyl dicyclohexyl. The properties of this fluid composition make it particularly well suited for use as a tractant in tractive drive apparatus intended for low temperature service.
Inventors
- 👤 James C Wygant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:50
CPC Classifications
C; C10; C10M; C10M171/00; C10M171/002
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
17 words
A tractive fluid composition of claim 1 wherein the tercyclohexyl is a mixture of 1,2-tercyclohexyl and 1,3-tercyclohexyl.
Claim 2
Dependent Claim
14 words
A tractive fluid composition of claim 1 wherein the alkyl dicyclohexyl is isopropyl dicyclohexyl.
Claim 3
Dependent Claim
29 words
A tractive fluid composition consisting essentially of 36-54 percent by weight hydrogenated dicumyl, 36-54 percent by weight tercyclohexyl, and at least 5 percent by weight dicyclohexyl Or isopropyl dicyclohexyl.
Claim 4
Dependent Claim
17 words
A tractive fluid composition of claim 4 wherein the tercyclohexyl is a mixture of 1,2-tercyclohexyl and 1,3-tercyclohexyl.
Claim 5
Dependent Claim
22 words
A tractive fluid composition of claim 4 wherein the tercyclohexyl is a mixture of about 40 parts 1,2-tercyclohexyl and 60 parts 1,3-tercyclohexyl.
References Cited (Backward Citations)
US3440894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-28 | 1975-09-27 | 1976-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-28 | 1979-09-27 | 1980-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-28 | 1983-09-27 | 1984-03-28 | $7700.00 | Window Closed / Lapsed |