US2990943A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal working process
Assignee: Armour and Co
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Filing: 1956-10-09
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Granted: 1961-07-04
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Expires: 1976-10-09
Abstract
No abstract record available.
Inventors
- 👤 Turinsky Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:08
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10N; C10N2040/00; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A METHOD OF TREATING METAL WHICH COMPRISES DEFORMING WITH A METAL WORKING TOOL METAL IN CONTACT WITH A MAJOR AMOUNT OF A METAL WORKING LUBRICANT SELECTED FROM THE GROUP CONSISTING OF PETROLATUM AND MINERAL OILS CONTAINING FROM 5 TO 25% BY WEIGHT OF A SALT OF A FATTY ACID HAVING FROM 8 TO 22 CARBON ATOMS AND A DIAMINE HAVING THE FORMULA RNHCH2CH2CH2NH2 WHEREIN R IS AN ALIPHATIC HYDROCARBON RADICAL HAVING FROM 8 TO 22 CARBON ATOMS.
Claim 2
Independent Claim
77 words
A METHOD OF TREATING METAL WHICH COMPRISES DEFORMING WITH A METAL WORKING TOOL METAL IN CONTACT WITH A MAJOR AMOUNT OF A METAL WORKING LUBRICANT SELECTED FROM THE GROUP CONSISTING OF PETROLATUM AND MINERAL OILS CONTAINING FROM 5 TO 25% BY WEIGHT OF A SALT OF A FATTY ACID HAVING FROM 8 TO 22 CARBON ATOMS AND A DIAMINE HAVING THE FORMULA RNHCH2CH2CH2NH2 WHEREIN R IS AN ALIPHATIC HYDROCARBON RADICAL HAVING FROM 8 TO 22 CARBON ATOMS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |