US3269945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease composition
Assignee: Gulf Research and Development Co
•
Filing: 1963-11-07
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Granted: 1966-08-30
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Expires: 1983-11-07
Abstract
No abstract record available.
Inventors
- 👤 John F Hedenburg
- 👤 Chester S Tempalski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:53
CPC Classifications
C; C10; C10M; C10M7/00; C10M2201/00; C10M2201/10; C10M2201/105; C10M2201/14; C10M2207/00; C10M2207/04; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/04; C10M2229/043; C10M2229/044; C10N; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/08; C10N2050/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
84 words
A LUBRICATING COMPOSITION COMPRISING A DISPERSION IN A MAJOR AMOUNT OF A SYNTHETIC LUBRICATING OIL SELECTED FROM THE GROUP CONSISTING OF LIQUID POLYORGANO SILOXANES HAVING DIPHENYLMETHYLSILYL END GROUPS AND POLYARYL ETHERS OF A SUFFICIENT AMOUNT TO THICKEN THE LUBRICATING OIL TO A GREASE CONSISTENCY OF MALONOGUANAMINE WHICH PRIOR TO BEING INCORPORATED INTO THE OIL HAS BEEN HEATED TO A TEMPERATURE OF ABOUT 450* TO ABOUT 600*F. FOR A TIME SUFFICIENT TO REDUCE THE WEIGHT OF THE MALONOGUANAMINE BY ABOUT 20 TO ABOUT 25 PERCENT.
Claim 2
Dependent Claim
84 words
A LUBRICATING COMPOSITION COMPRISING A DISPERSION IN A MAJOR AMOUNT OF A SYNTHETIC LUBRICATING OIL SELECTED FROM THE GROUP CONSISTING OF LIQUID POLYORGANO SILOXANES HAVING DIPHENYLMETHYLSILYL END GROUPS AND POLYARYL ETHERS OF A SUFFICIENT AMOUNT TO THICKEN THE LUBRICATING OIL TO A GREASE CONSISTENCY OF MALONOGUANAMINE WHICH PRIOR TO BEING INCORPORATED INTO THE OIL HAS BEEN HEATED TO A TEMPERATURE OF ABOUT 450* TO ABOUT 600*F. FOR A TIME SUFFICIENT TO REDUCE THE WEIGHT OF THE MALONOGUANAMINE BY ABOUT 20 TO ABOUT 25 PERCENT.
Claim 3
Dependent Claim
82 words
A LUBRICATING COMPOSITION COMPRISING A DISPERSION IN A MAJOR AMOUNT OF A LIQUID POLYORFANO SILOXANE HAVING DIPHENYLMETHYLSILYL END GROUPS OF ABOUT 10 TO ABOUT 40 PERCENT BY WEIGHT OF MALONOGUANAMINE WHICH PRIOR TO BEING INCORPORATED INTO THE LIQUID POLYORGANO SILOXANE HAS BEEN HEATED TO A TEMPERATURE INTO THE LIQUID POLYORGANO SILOZ 600*F. FOR A TIME SUFFICIENT TO REDUCE THE WEIGHT OF THE MALONOGUANAMINE BY ABOUT 20 TO ABOUT 25 PERCENT AND ABOUT 0.54 TO ABOUT 3 PERCENT BY WEIGHT OF FINELY-DIVIDED SILICA.
Claim 4
Dependent Claim
82 words
A LUBRICATING COMPOSITION COMPRISING A DISPERSION IN A MAJOR AMOUNT OF A LIQUID POLYORFANO SILOXANE HAVING DIPHENYLMETHYLSILYL END GROUPS OF ABOUT 10 TO ABOUT 40 PERCENT BY WEIGHT OF MALONOGUANAMINE WHICH PRIOR TO BEING INCORPORATED INTO THE LIQUID POLYORGANO SILOXANE HAS BEEN HEATED TO A TEMPERATURE INTO THE LIQUID POLYORGANO SILOZ 600*F. FOR A TIME SUFFICIENT TO REDUCE THE WEIGHT OF THE MALONOGUANAMINE BY ABOUT 20 TO ABOUT 25 PERCENT AND ABOUT 0.54 TO ABOUT 3 PERCENT BY WEIGHT OF FINELY-DIVIDED SILICA.
References Cited (Backward Citations)
US2427315A
Cited
US2984624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |