Patent US2926988A successfully refreshed from Google Patents.
US2926988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Popped volcanic ash cover for liquids
Assignee: Phillips Petroleum Co
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Filing: 1955-02-21
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Granted: 1960-03-01
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Expires: 1975-02-21
Abstract
No abstract record available.
Inventors
- 👤 James R Hurley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:22
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/22; B65D90/38; B65D90/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
A METHOD FOR PROTECTING A LIQUID AGAINST LOSS OF VOLATILE COMPONENTS THEREOF TO THE ATMOSPHERE OR ITS CONTAMINATION BY SAID ATMOSPHERE WHICH COMPRISES SUBJECTING POPPED VOLCANIC ASH TO A REDUCED PRESSURE, THEN FLOATING SAID POPPED VOLCANIC ASH UPON A SEPARATE BODY OF SAID LIQUID, ALLOWING NON-FLOATING PORTIONS OF THE VOLCANIC ASH TO SEPARATE FROM THE REMAINDER OF THE ASH FLOATING UPON THE SURFACE OF THE SAID SEPARATE BODY OF LIQUID RECOVER ING SAID REMAINDER OF ASH FROM SAID SEPARATE BODY OF LIQUID AND THEN FLOATING THE SAID REMAINDER OF VOLCANIC ASH UPON THE REMAINDER OF SAID LIQUID IN A QUANTITY SUFFICIENT TO SUBSTANTIALLY COMPLETELY COVER SAID LIQUID.
Claim 2
Independent Claim
107 words
A METHOD FOR PROTECTING A LIQUID AGAINST LOSS OF VOLATILE COMPONENTS THEREOF TO THE ATMOSPHERE OR ITS CONTAMINATION BY SAID ATMOSPHERE WHICH COMPRISES SUBJECTING POPPED VOLCANIC ASH TO A REDUCED PRESSURE, THEN FLOATING SAID POPPED VOLCANIC ASH UPON A SEPARATE BODY OF SAID LIQUID, ALLOWING NON-FLOATING PORTIONS OF THE VOLCANIC ASH TO SEPARATE FROM THE REMAINDER OF THE ASH FLOATING UPON THE SURFACE OF THE SAID SEPARATE BODY OF LIQUID RECOVER ING SAID REMAINDER OF ASH FROM SAID SEPARATE BODY OF LIQUID AND THEN FLOATING THE SAID REMAINDER OF VOLCANIC ASH UPON THE REMAINDER OF SAID LIQUID IN A QUANTITY SUFFICIENT TO SUBSTANTIALLY COMPLETELY COVER SAID LIQUID.
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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) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |