Patent US3598740A successfully refreshed from Google Patents.
US3598740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traction drive transmission containing paraffinic oil as lubricant
Assignee: Sunoco Inc
•
Filing: 1967-11-01
•
Granted: 1971-08-10
•
Expires: 1987-11-01
Abstract
Abstract A POWER TRANSMISSION SYSTEM COMPRISES A TRACTION DRIVE TRANSMISSION AND AS A LUBRICANT A HYDROCARBON BASE STOCK COMPRISING A PARAFFINIC OIL CONTAINING LESS THAN 1% BY WEIGHT OF AROMATICS AND HAVING AN ULTRAVIOLET ABSORPTIVITY AT 260 MILLIMICRONS OF LESS THAN 0.5.
Inventors
- 👤 Irl N Duling
- 👤 David S Gates
- 👤 Thomas D Newington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:43
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/26; C; C10; C10M; C10M171/00; C10M171/002; C10M3/00; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2205/00; C10M2205/04; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/023; C10M2207/027; C10M2207/04; C10M2207/28; C10M2211/00; C10M2211/02; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2219/00; C10M2219/04; C10M2219/044; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10N; C10N2040/00; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50
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) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |