Patent US3012969A successfully refreshed from Google Patents.
US3012969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Volatile organic liquids of increased electrical conductivity
Assignee: Shell USA Inc
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Filing: 1956-11-15
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Granted: 1961-12-12
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Expires: 1976-11-15
Abstract
No abstract record available.
Inventors
- 👤 Minne Johan Leonard Van Der
- 👤 Hermanie Pieter Hendrik Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:30
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/0006; B01J19/002; C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; D; D06; D06F; D06F43/00; D06F43/007; D06L; D06L1/00; D06L1/02; D06L1/04; C10L1/18; C10L1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A VOLATILE PETROLEUM HYDROCARBON LIQUID CONTAINING SUBSTANTIALLY ONLY COMPOUNDS HAVING UP TO 12 CARBON ATOMS PER MOLECULE, HAVING A DIELECTRIC CONSTANT AT 20* C. OF LESS THAN 7, AND CONTAINING FROM ABOUT 1X10-7 TO 1X10-4 GRAM MOLE PER LITER OF SAID HYDROCARBON LIQUID, EACH OF A SALT (A) OF THE GROUP CONSISTING OF CALCIUM DIISOPROPYL SALICYLATE AND CHROMIUM DIISOPROPYL SALICYLATE AND A SALT (B) OF THE GROUP CONSISTING OF SODIUM PETROLEUM SULFONATE, TETRAISOAMYL AMMONIUM PICRATE AND A SALT OF SULFONATED DIOCTYL ESTER OF SUCCINIC ACID, CONTAINING ONLY IONS DIFFERING FROM THOSE OF CHROMIUM DIISOPOPYL SALICYLATE AND FROM THOSE OF CALCIUM DIISOPROPYL SILICYLATE.
Claim 2
Dependent Claim
102 words
A VOLATILE PETROLEUM HYDROCARBON LIQUID CONTAINING SUBSTANTIALLY ONLY COMPOUNDS HAVING UP TO 12 CARBON ATOMS PER MOLECULE, HAVING A DIELECTRIC CONSTANT AT 20* C. OF LESS THAN 7, AND CONTAINING FROM ABOUT 1X10-7 TO 1X10-4 GRAM MOLE PER LITER OF SAID HYDROCARBON LIQUID, EACH OF A SALT (A) OF THE GROUP CONSISTING OF CALCIUM DIISOPROPYL SALICYLATE AND CHROMIUM DIISOPROPYL SALICYLATE AND A SALT (B) OF THE GROUP CONSISTING OF SODIUM PETROLEUM SULFONATE, TETRAISOAMYL AMMONIUM PICRATE AND A SALT OF SULFONATED DIOCTYL ESTER OF SUCCINIC ACID, CONTAINING ONLY IONS DIFFERING FROM THOSE OF CHROMIUM DIISOPOPYL SALICYLATE AND FROM THOSE OF CALCIUM DIISOPROPYL SILICYLATE.
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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) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |