US3247673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated retaining wall and method of constructing same
Assignee: International Business Machines Corp
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Filing: 1961-06-06
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Granted: 1966-04-26
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Expires: 1981-06-06
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Schneller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:01
CPC Classifications
E; E02; E02D; E02D29/00; E02D29/02; E02D29/0258; E02D29/0283
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
115 words
IN A LAMINATED RETAINING WALL CONSTRUCTED ON GROUND ALONG THE BERM LINE OF A BODY OF WATER AND SUBJECTED TO EXCEPTIONALLY HEAVY HORIZONTAL LOADS BY THE BACKFILL, THE COMBINATION COMPRISING; A PAIR OF UPSTANDING CONTIGUOUS SECTIONS, EACH SECTION INCLUDING A PAIR OF CORRUGATED MATERIAL, OF LIGHT WEIGHT AND RIGID, MINERAL FIBER-CEMENT MATERIAL, SAID SHEETS BEING ARRANGED PARALLEL AND RIGIDLY LAMINATED INWARDLY, SUBSTANTIALLY PARALLEL AND RIGIDLY LAMINATED TOGETHER CREST TO CREST, AND WITH AN END CORRUGATION OF EACH SHEET OFFSET LATERALLY BEYOND AND ADJACENT END CORRUGATION OF THE OTHER SHEET BY THE FULL WIDTH OF A CORRUGATION MEASURED FROM THE CENTER OF A CREST TO CREST LAMINATION, AND SAID SECTIONS BEING ARRANGED WITH ADJACENT OFFSET END
References Cited (Backward Citations)
BE524731A
Cited
GB184812356A
Cited
US2076989A
Cited
FR780436A
Cited
US2099542A
Cited
US2769277A
Cited
US2815656A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |