Patent US3265620A successfully refreshed from Google Patents.
US3265620A
Expired / Lapsed
US
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Cutting fluid
Assignee: Individual
•
Filing: 1963-08-29
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Granted: 1966-08-09
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Expires: 1983-08-29
Abstract
No abstract record available.
Inventors
- 👤 Donald K Heiman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:51
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C09; C09K; C09K5/00; C09K5/08; C09K5/10; C10M2201/00; C10M2201/02; C10M2201/08; C10M2201/082; C10M2201/083; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10N; C10N2040/00; C10N2040/20; C10N2040/22; C10N2050/00; C10N2050/01; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
A METAL WORKING COOLANT COMPOSITION CONTAINING AS ESSENTIAL INGREDIENTS, IN ADDIION TO WATER: AN AMINE COMPOUND SELECTED FROM THE GROUP CONSISTING OF TRIETHANOLAMINE, DIETHANOLAMINE AND MONOETHANOLAMINE AND MIXTURES THEREOF; ALKALI METAL NITRITE; A ARYLTRIAZOLE COMPOUND SELECTED FROM THE GROUP CONSISTING OF BENZOTRIAZOLE, 4-NITROBENZOTRIAZOLE, AND MIXTURES THEREOF; AND THE TETRASODIUM SALT OF ETHYLENE DIAMINEACETIC ACID AS A CHELATING AGENT, EACH OF SAID AMINE COMPOUND AND SAID ALKALI METAL NITRITE BEING PRESENT IN AN AMOUNT THAT IS AT LEAST 1/40 OF THE WEIGHT OF THE OTHER, THE ARYLTRIAZOLE COMPOUND BEING FROM .025% TO 25% OF THE TOTAL WEIGHT OF THE AMINE COMPOUND AND THE ALKALI METAL NITRITE, AND THE CHELATING AGENT BEING PRESENT IN A SMALL BUT EFFECTIVE AMOUNT.
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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |