US3808129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low friction,high load bearing compositions
Assignee: 3M Co
•
Filing: 1972-02-07
•
Granted: 1974-04-30
•
Expires: 1992-02-07
Abstract
Abstract A SELF-LUBRICATING COMPOSITION HAVING HIGH LOAD BEARING PROPERTIES WHICH COMPRISES 100 PARTS BY WEIGHT OF A THERMOSET POLYMER HAVING URETHANE OR UREA GROUPS THEREIN AND HAVING SUFFICIENT ISOCYANURATE GROUPS THEREIN SUCH THAT SAID POLYMER RETAINS AT LEAST 60% OF ITS ROOM TEMPERATURE HARDNESS WHEN MEASURED AT 350*F, AFTER 1 HOUR AND HOMOGENEOUSLY DISPERSED THEREIN, FROM 1 TO 40 PARTS BY WEIGHT OF AN INERT ORGANIC LUBRICANT WHICH IS A NONVOLATILE FLUID IN AT LEAST PART OF THE TEMPERATURE RANGE FROM 100*f. TO THE DEGRADATION TEMPERATURE OF SAID POLYMER.
Inventors
- 👤 J Lindlof
- 👤 G Rambosek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:24
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/09; C08G18/092; C08G18/10; C08L; C08L75/00; C08L75/04; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/20; F16C33/201; F16N; F16N15/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-29 | 1977-10-29 | 1978-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-29 | 1981-10-29 | 1982-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-29 | 1985-10-29 | 1986-04-30 | $7700.00 | Window Closed / Lapsed |