Patent US3146060A successfully refreshed from Google Patents.
US3146060A
Expired / Lapsed
US
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Suppression of evaporation of hydrocarbon liquids
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1959-12-21
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Granted: 1964-08-25
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Expires: 1979-12-21
Abstract
No abstract record available.
Inventors
- 👤 Gerard P Canevari
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:41
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/22; B65D90/38; B65D90/42; C; C10; C10L; C10L1/00; C10L1/006
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A METHOD OF REDUCING THE RATE OF EVAPORATION FROM THE FREE SURFACE OF A BODY OF LIQUID WHICH COMPRISES COVERING SAID LIQUID SURFACE WITH A PLURALITY OF DISCRETE PARTICLES IN CONTINUOUS RUBBING CONTACT WITH EACH OTHER, SAID PARTICLES HAVING AN AVERAGE DIAMETER IN THE RANGE ONE MICRON TO ONE-HALF INCH, EACH BEING ESSENTIALLY HOLLOW, SPHERICAL, AND GAS FILLED, AND HAVING A CONTINUOUS EXTERIOR SURFACE FILM OF A MATERIAL ESSENTIALLY NON-WETTABLE BY SAID LIQUID; SAID FILM CONSTITUTING FROM 1.5 TO 6.0 WT. PERCENT OF SAID PARTICLE.
Claim 2
Independent Claim
85 words
A METHOD OF REDUCING THE RATE OF EVAPORATION FROM THE FREE SURFACE OF A BODY OF LIQUID WHICH COMPRISES COVERING SAID LIQUID SURFACE WITH A PLURALITY OF DISCRETE PARTICLES IN CONTINUOUS RUBBING CONTACT WITH EACH OTHER, SAID PARTICLES HAVING AN AVERAGE DIAMETER IN THE RANGE ONE MICRON TO ONE-HALF INCH, EACH BEING ESSENTIALLY HOLLOW, SPHERICAL, AND GAS FILLED, AND HAVING A CONTINUOUS EXTERIOR SURFACE FILM OF A MATERIAL ESSENTIALLY NON-WETTABLE BY SAID LIQUID; SAID FILM CONSTITUTING FROM 1.5 TO 6.0 WT. PERCENT OF SAID PARTICLE.
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) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |