US3218810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic levee
Assignee: Consolidated Thermoplastic Co
•
Filing: 1961-09-05
•
Granted: 1965-11-23
•
Expires: 1981-09-05
Abstract
No abstract record available.
Inventors
- 👤 Grether Tobias
- 👤 Bermann James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:51
CPC Classifications
E; E02; E02B; E02B7/00; E02B7/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A SOIL-SUPPORTED, SYNTHETIC LEVEE WHICH COMPRISES, IN COMBINATION, A PLURALITY OF SPACED ELONGATED SUPPORT MEMBERS, EACH OF SAID ELONGATED SUPPORT MEMBERS HAVING UPPER AND LOWER PORTIONS, THE LOWER PORTION OF EACH ELONGATED SUPPORT MEMBER BEING DISPOSED WITHIN AND SUPPORTED BY THE SOIL AND THE UPPER PORTION THEREOF EXTENDING UPWARDLY ABOVE THE SOIL, A SUBSTANTIALLY FLUID-IMPERVIOUS PLIANT SHEET MATERIAL, SAID PLIANT SHEET MATERIAL FOLDED LONGITUDINALLY INTO TWO DEPENDING SIDE PORTIONS TO FORM A CREASE, A LINEAR SUPPORT MEMBER SECURED TO THE UPPER PORTION OF EACH OF SAID ELONGATED SUPPORT MEMBERS, SAID LINEAR SUPPORT MEMBER BEING LONGITUDINALLY DISPOSED BETWEEN SAID DEPENDING SIDE PORTIONS OF SAID PLIANT SHEET MATERIAL AND ENGAGING SAID CREASE SO AS TO SUPPORT SAID SHEET MATERIAL, AND THE LOWER EDGES OF SAID TWO DEPENDING SIDE PORTIONS OF PLIANT SHEET MATERIAL ENGAGING THE SOIL FROM ONE ELONGATED SUPPORT MEMBER TO ANOTHER AND HELD IN FLUID-SEALING RELATIONSHIP THEREWITH.
Claim 2
Dependent Claim
147 words
A SOIL-SUPPORTED, SYNTHETIC LEVEE WHICH COMPRISES, IN COMBINATION, A PLURALITY OF SPACED ELONGATED SUPPORT MEMBERS, EACH OF SAID ELONGATED SUPPORT MEMBERS HAVING UPPER AND LOWER PORTIONS, THE LOWER PORTION OF EACH ELONGATED SUPPORT MEMBER BEING DISPOSED WITHIN AND SUPPORTED BY THE SOIL AND THE UPPER PORTION THEREOF EXTENDING UPWARDLY ABOVE THE SOIL, A SUBSTANTIALLY FLUID-IMPERVIOUS PLIANT SHEET MATERIAL, SAID PLIANT SHEET MATERIAL FOLDED LONGITUDINALLY INTO TWO DEPENDING SIDE PORTIONS TO FORM A CREASE, A LINEAR SUPPORT MEMBER SECURED TO THE UPPER PORTION OF EACH OF SAID ELONGATED SUPPORT MEMBERS, SAID LINEAR SUPPORT MEMBER BEING LONGITUDINALLY DISPOSED BETWEEN SAID DEPENDING SIDE PORTIONS OF SAID PLIANT SHEET MATERIAL AND ENGAGING SAID CREASE SO AS TO SUPPORT SAID SHEET MATERIAL, AND THE LOWER EDGES OF SAID TWO DEPENDING SIDE PORTIONS OF PLIANT SHEET MATERIAL ENGAGING THE SOIL FROM ONE ELONGATED SUPPORT MEMBER TO ANOTHER AND HELD IN FLUID-SEALING RELATIONSHIP THEREWITH.
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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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |