US3392500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Freight car construction
Assignee: Individual
•
Filing: 1964-11-23
•
Granted: 1968-07-16
•
Expires: 1984-11-23
Abstract
No abstract record available.
Inventors
- 👤 Johnston Charles Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:41
CPC Classifications
B; B61; B61D; B61D17/00; B61D17/04; B61D17/10; B61D17/043; B62; B62D; B62D33/00; B62D33/04; B62D33/046; Y; Y02; Y02T; Y02T30/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A PREFABRICATED PANEL FOR USE IN THE CONSTRUCTION OF A WALL AND THE LIKE COMPRISING (A) A LOAD BEARING OUTER WALL SHEET OF METALLIC MATERIAL, (B) SAID OUTER WALL SHEET PROVIDING THROUGHOUT ITS LONGITUDINAL LENGTH VERTICALLY EXTENDING INWARDLY OPENING CHANNELS SPACED FROM EACH OTHER BY A SUBSTANTIALLY FLAT WALL PORTION, (C) AN INNER WALL SHEET COMPRISING A PLURALITY OF STRUCTURAL MEMBERS PROVIDING VERTICAL RIBS WHICH EXTEND FROM ITS INNER WALL SURFACE IN THE DIRECTION OF THE OUTER WALL, (D) SAID RIBS PROVIDING A SUBSTANTIALLY FLAT BASE PORTION IN CONTACT WITH A BASE PORTION PROVIDED BY SAID CHANNELS FROM IN SAID OUTER WALL SHEET, (E) AND LATERAL END FLANGES EXTENDING IN OPPOSITE DIRECTIONS IN THE PLANE OF THE SUBSTANTIALLY FLAT WALL PORTIONS PROVIDED BY SAID OUTER WALL SHEET, AND CONNECTED IN SAID CHANNELS TO FORM A SUBSTANTIALLY FLUSH INNER WALL FOR A RIGID SELF-SUPPORTING LOAD BEARING PANEL.
Claim 2
Dependent Claim
146 words
A PREFABRICATED PANEL FOR USE IN THE CONSTRUCTION OF A WALL AND THE LIKE COMPRISING (A) A LOAD BEARING OUTER WALL SHEET OF METALLIC MATERIAL, (B) SAID OUTER WALL SHEET PROVIDING THROUGHOUT ITS LONGITUDINAL LENGTH VERTICALLY EXTENDING INWARDLY OPENING CHANNELS SPACED FROM EACH OTHER BY A SUBSTANTIALLY FLAT WALL PORTION, (C) AN INNER WALL SHEET COMPRISING A PLURALITY OF STRUCTURAL MEMBERS PROVIDING VERTICAL RIBS WHICH EXTEND FROM ITS INNER WALL SURFACE IN THE DIRECTION OF THE OUTER WALL, (D) SAID RIBS PROVIDING A SUBSTANTIALLY FLAT BASE PORTION IN CONTACT WITH A BASE PORTION PROVIDED BY SAID CHANNELS FROM IN SAID OUTER WALL SHEET, (E) AND LATERAL END FLANGES EXTENDING IN OPPOSITE DIRECTIONS IN THE PLANE OF THE SUBSTANTIALLY FLAT WALL PORTIONS PROVIDED BY SAID OUTER WALL SHEET, AND CONNECTED IN SAID CHANNELS TO FORM A SUBSTANTIALLY FLUSH INNER WALL FOR A RIGID SELF-SUPPORTING LOAD BEARING PANEL.
References Cited (Backward Citations)
US1689472A
Cited
US1840942A
Cited
DE658809C
Cited
US2228650A
Cited
GB645852A
Cited
US2923256A
Cited
US3102613A
Cited
US3185112A
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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) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |