Patent US3788988A successfully refreshed from Google Patents.
US3788988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant compositions for the cold shaping of metals
Assignee: Rhone Poulenc SA
•
Filing: 1972-03-28
•
Granted: 1974-01-29
•
Expires: 1992-03-28
Abstract
Abstract A LUBRICATING COMPOSITION, SUITABLE FOR COLD WORKING METALS, COMPRISE (I) AN AMIDE PHOSPHATE WHICH IS A REACTION PRODUCT OF ORTHO-PHOSPHORIC ACID OR MONO OR DIESTER THEREOF AND AN AMIDE DERIVED FROM AN ALIPHATIC CARBOXYLIC ACID HAVING AT LEAST 12 CARBON ATOMS OR A RESIN ACID AND A PRIMARY OR SECONDARY ALIPHATIC AMINE AND (II) A SURFACE ACTIVE AGENT. THE COMPOSITION MAY BE PREPARED IN ANHYDROUS FORM AND EMULSIFIED IN WATER PRIOR TO USE OR MAY BE PREPARED AS AN AQUEOUS EMULSION.
Inventors
- 👤 J Dubourg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:36
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/122; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/08; C10M2215/082; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/043; C10M2223/049; C10M2225/00; C10M2225/02; C10N; C10N2040/00; C10N2040/20; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2050/00; C10N2050/01; C10N2050/10
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) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |