Patent US1568943A successfully refreshed from Google Patents.
Patent US3390080A successfully refreshed from Google Patents.
US3390080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molybdenum disulphide
Assignee: BP PLC
•
Filing: 1966-09-21
•
Granted: 1968-06-25
•
Expires: 1986-09-21
Abstract
No abstract record available.
Inventors
- 👤 Groszek Aleksander Jerzy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:34
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/003; C01; C01G; C01G39/00; C01G39/06; C07; C07C; C07C7/00; C07C7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
AN OLEOPHILIC MOLYBDENUM DISULPHIDE WITH A SURFACE AREA OF FROM 10 TO 400 SQUARE METRES PER GRAM, PREPARED BY GRINDING NATURAL OR SYNTHETIC MOLYBDENUM DISULPHIDE IN ORGANIC LIQUID DISTILLING BELOW 500*C., HAVING A VISCOSITY BELOW 600 CENTISTOKES AT 38*C. AND A SURFACE TENSION LESS THAN 72 DEGREES/CM. AT 25*C.
Claim 2
Dependent Claim
49 words
AN OLEOPHILIC MOLYBDENUM DISULPHIDE WITH A SURFACE AREA OF FROM 10 TO 400 SQUARE METRES PER GRAM, PREPARED BY GRINDING NATURAL OR SYNTHETIC MOLYBDENUM DISULPHIDE IN ORGANIC LIQUID DISTILLING BELOW 500*C., HAVING A VISCOSITY BELOW 600 CENTISTOKES AT 38*C. AND A SURFACE TENSION LESS THAN 72 DEGREES/CM. AT 25*C.
References Cited (Backward Citations)
US3059769A
Cited
US3338822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-25 | 1971-12-25 | 1972-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-25 | 1975-12-25 | 1976-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-25 | 1979-12-25 | 1980-06-25 | $7700.00 | Window Closed / Lapsed |