Patent US705264A successfully refreshed from Google Patents.
US3343370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earth embankment with internal water barrier
Assignee: Kalle GmbH and Co KG
•
Filing: 1963-10-16
•
Granted: 1967-09-26
•
Expires: 1983-10-16
Abstract
No abstract record available.
Inventors
- 👤 Twele Gunther
- 👤 Rothaug Johanne Helgard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:43
CPC Classifications
E; E02; E02B; E02B3/00; E02B3/04; E02B3/12; E02B3/122; E02B3/126; E02B3/10; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1089; Y10T156/109
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
AN EARTH EMBANKMENT HAVING AN INTERNAL BARRIER TO PREVENT WATER PENETRATION, COMPRISING A WATER-IMPERVIOUS THERMOPLASTIC FILM EXTENDING IN AN INCLINED POSITION WITHIN THE EMBANKMENT, SAID FILM SEPARATING THE EMBANKMENT INTO AN UPPER PORTION AND A LOWER PORTION AND BEING IN CONTACT THEREWITH, SAID THEREMOPLASTIC FILM BEING DIRECTLY SUPPORTED ON SAID LOWER PORTION AND HAVING ANCHORED TO AT LEAST THE UPPER SURFACE THEREOF A PLURALITY OF SMALL SOLID PARTICLES, SAID PARTICLES BEING DISPERSED COMPLETELY OVER THE UPPER SURFACE OF SAID FILM AND PROTRUDING INTO SAID UPPER PORTION TO PREVENT SLIPPAGE OF SAID UPPER PORTION.
Claim 2
Dependent Claim
93 words
AN EARTH EMBANKMENT HAVING AN INTERNAL BARRIER TO PREVENT WATER PENETRATION, COMPRISING A WATER-IMPERVIOUS THERMOPLASTIC FILM EXTENDING IN AN INCLINED POSITION WITHIN THE EMBANKMENT, SAID FILM SEPARATING THE EMBANKMENT INTO AN UPPER PORTION AND A LOWER PORTION AND BEING IN CONTACT THEREWITH, SAID THEREMOPLASTIC FILM BEING DIRECTLY SUPPORTED ON SAID LOWER PORTION AND HAVING ANCHORED TO AT LEAST THE UPPER SURFACE THEREOF A PLURALITY OF SMALL SOLID PARTICLES, SAID PARTICLES BEING DISPERSED COMPLETELY OVER THE UPPER SURFACE OF SAID FILM AND PROTRUDING INTO SAID UPPER PORTION TO PREVENT SLIPPAGE OF SAID UPPER PORTION.
References Cited (Backward Citations)
US2034941A
Cited
GB715126A
Cited
US2722265A
Cited
US3038393A
Cited
US2761177A
Cited
US2888975A
Cited
US3219507A
Cited
US3152002A
Cited
US3188814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |