US3738527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing and liner for liquid storage tank
Assignee: Individual
•
Filing: 1970-11-18
•
Granted: 1973-06-12
•
Expires: 1990-11-18
Abstract
Abstract A vessel is provided having a substrate bonded to the interior thereof and an inner facing layer bonded to the substrate, the substrate providing a distortable mat of a closed-cell material which acts as a resilient spring means to absorb distortion of the flexible impervious inner facing layer thereby inhibiting rupture and facilitating non-destructive movement of the liner. A chemical reactor or storage tank is provided having on its internal surfaces a closed-cell foamed synthetic resin and on the interior thereof a corrosion-resistant plastic material, the two layers being intimately bonded together and to the exterior shell of the tank or reactor.
Inventors
- 👤 J Townsend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:36
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/02; B65D90/04; B65D90/046; Y; Y10; Y10S; Y10S220/00; Y10S220/901; Y10S220/917; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249976
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3150794A
Cited
US3132761A
Cited
US3434588A
Cited
US3578524A
Cited
US3495756A
Cited
US3474625A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |