Patent US3625527A successfully refreshed from Google Patents.
Patent US2734031A successfully refreshed from Google Patents.
US2734031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricants containing polymers of
Assignee: —
•
Filing: —
•
Granted: 1956-02-07
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Expires: 1973-02-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:21
CPC Classifications
C; C10; C10M; C10M143/00; C10M143/16; C10M2205/00; C10M2205/06; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/10; C10M2209/103; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A LUBRICATING COMPOSITION COMPRISING AN ORGANIC LUBRICATING LIQUID OF OILY NATURE AND A POLYMER OF CYCLOPENTADIENE HAVING THE EMPIRICAL FORMULA OF (C5H6)N IN WHICH N IS A FIGURE OF AT LEAST 3 AND WHEREIN THERE ARE TWO DOUBLE BONDS, THE PER CENT BY WEIGHT OF POLYMER PRESENT BASED ON THE WEIGHT OF THE ORGANIC LUBRICATING LIQUID OF OILY NATURE IN THE COMPOSITION BEING SUFFICIENT TO INCREASE AND STABILIZE THE VISCOSITY OF THE ORGANIC LIQUID BUT NOT MORE THAN 25% BY WEIGHT THEREOF.
Claim 2
Dependent Claim
82 words
A LUBRICATING COMPOSITION COMPRISING AN ORGANIC LUBRICATING LIQUID OF OILY NATURE AND A POLYMER OF CYCLOPENTADIENE HAVING THE EMPIRICAL FORMULA OF (C5H6)N IN WHICH N IS A FIGURE OF AT LEAST 3 AND WHEREIN THERE ARE TWO DOUBLE BONDS, THE PER CENT BY WEIGHT OF POLYMER PRESENT BASED ON THE WEIGHT OF THE ORGANIC LUBRICATING LIQUID OF OILY NATURE IN THE COMPOSITION BEING SUFFICIENT TO INCREASE AND STABILIZE THE VISCOSITY OF THE ORGANIC LIQUID BUT NOT MORE THAN 25% BY WEIGHT THEREOF.
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) | 1959-02-06 | 1959-08-08 | 1960-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-06 | 1963-08-08 | 1964-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-06 | 1967-08-08 | 1968-02-07 | $7700.00 | Window Closed / Lapsed |