US3847828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Working of non-ferrous metals
Assignee: Universal Oil Products Co
•
Filing: 1973-05-14
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Granted: 1974-11-12
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Expires: 1993-05-14
Abstract
Abstract 1. IN THE WORKING OF ZIRCONIUM OF A ZIRCONIUM ALLOY WHICH IS PREDOMINANTLY ZIRCONIUM IN MOVABLE CONTACT WITH ANOTHER METAL, THE IMPROVEMENT WHICH COMPRISES LUBRICATING THE CONTACTING SURFACES OF SAID ZIRCONIUM OR ALLOY AND METAL WITH LUBRICATING AMOUNTS OF A WATERSOLUBLE POLYGLYCOL HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 400.
Inventors
- 👤 E Latos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:45
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; B; B21; B21C; B21C9/00; B21C9/02; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/125; C10M2207/128; C10M2207/129; C10M2207/16; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10N; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
IN THE WORKING OF ZIRCONIUM OF A ZIRCONIUM ALLOY WHICH IS PREDOMINANTLY ZIRCONIUM IN MOVABLE CONTACT WITH ANOTHER METAL, THE IMPROVEMENT WHICH COMPRISES LUBRICATING THE CONTACTING SURFACES OF SAID ZIRCONIUM OR ALLOY AND METAL WITH LUBRICATING AMOUNTS OF A WATERSOLUBLE POLYGLYCOL HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 400.
Claim 2
Dependent Claim
50 words
IN THE WORKING OF ZIRCONIUM OF A ZIRCONIUM ALLOY WHICH IS PREDOMINANTLY ZIRCONIUM IN MOVABLE CONTACT WITH ANOTHER METAL, THE IMPROVEMENT WHICH COMPRISES LUBRICATING THE CONTACTING SURFACES OF SAID ZIRCONIUM OR ALLOY AND METAL WITH LUBRICATING AMOUNTS OF A WATERSOLUBLE POLYGLYCOL HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 400.
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) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |