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Patent US3346496A successfully refreshed from Google Patents.
US3346496A
Expired / Lapsed
US
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Lubricants containing carbodiimides as antioxidants
Assignee: Bayer AG
•
Filing: 1965-05-13
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Granted: 1967-10-10
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Expires: 1985-05-13
Abstract
No abstract record available.
Inventors
- 👤 Neumann Wolfram
- 👤 Lohmar Walther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:01
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/107; C10M2209/109; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/086; C10M2215/14; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/28; C10M2215/30; C10N; C10N2030/00; C10N2030/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A LUBRICATING COMPOSITION COMPRISING (A) AN OIL BASE SELECTED FROM THE GROUP CONSISTING OF A MINERAL OID AND A SYNTHETIC POLYETHER CONTAINING -(CH2)4-O- GROUPS AND (B) AN OXIDATION -INHIBITING AMOUTN OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN ALIPHATIC MONOCARBONDIIMIDE, ALIPHATIC POLYCARBODIIMIDE, AROMATIC MONOCARBODIIMIDE AND AROMATIC POLYCARBODIIMIDE.
Claim 2
Dependent Claim
49 words
A LUBRICATING COMPOSITION COMPRISING (A) AN OIL BASE SELECTED FROM THE GROUP CONSISTING OF A MINERAL OID AND A SYNTHETIC POLYETHER CONTAINING -(CH2)4-O- GROUPS AND (B) AN OXIDATION -INHIBITING AMOUTN OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF AN ALIPHATIC MONOCARBONDIIMIDE, ALIPHATIC POLYCARBODIIMIDE, AROMATIC MONOCARBODIIMIDE AND AROMATIC POLYCARBODIIMIDE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |