US3240381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface cover for stored liquids
Assignee: Individual
•
Filing: 1962-01-02
•
Granted: 1966-03-15
•
Expires: 1982-01-02
Abstract
No abstract record available.
Inventors
- 👤 Millard F Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:54
CPC Classifications
B; B65; B65D; B65D88/00; B65D88/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
112 words
MEANS FOR CONFINING AND STORING LIQUID IN A BODY HAVING A FREE SURFACE COMPRISING, IN COMBINATION, A STORAGE TANK HAVING SIDE WALLS AND A BOTTOM, A LIQUID- AND GAS-IMPERVIOUS FLEXIBLY COILABLE FOAM BLANKET OF CLOSED CELL MATERIAL SUBSTANTIALLY THE SAME SIZE AND SHAPE AS THE FREE SURFACE OF THE LIQUID BEING STORED WITH ITS UNDERSURFACE SUBSTANTIALLY COVERED BY A THIN CONTINUOUS FILM OF COATING MATERIAL IMPERVIOUS TO THE STORED LIQUID, A PLURALITY OF FLEXIBLE CABLE, AND MEANS ATTACHING SAID FLEXIBLE CALBES TO THE BLANKET, WHEREBY SAID BLANKET AFTER BEING ROLLED UP AND INSERTED INTO THE TANK BY BE SPREAD UPON THE SURFACE OF SAID LIQUID THEREIN CONTAINED BY MANIPULATION OF SAID CABLES.
References Cited (Backward Citations)
US1611440A
Cited
FR832842A
Cited
US2330366A
Cited
US2409910A
Cited
US2529512A
Cited
US2620349A
Cited
US2660194A
Cited
US2847142A
Cited
US2867346A
Cited
US2873042A
Cited
US2907627A
Cited
US2919047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |