US3236017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interconnecting structural units
Assignee: Individual
•
Filing: 1963-10-07
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Granted: 1966-02-22
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Expires: 1983-10-07
Abstract
No abstract record available.
Inventors
- 👤 Doering John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:39
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/34; E04C2/3405; E04C2002/3477
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A LIGHTWEIGHT STRUCTURAL UNIT HAVING A SUPPORTING BASE SURFACE AND A LOAD-CARRYING DECK SURFACE MADE UP OF A PLURALITY OF SIMILAR COMPONENT MEMBERS EACH OF WHICH IS FORMED OF AN ELONGATED METAL SHEET OF ESSENTIALLY UNIFORM THICKNESS ONE SIDE PORTION OF WHICH IS BENT LONGITUDINALLY INTO A TUBULAR ELEMENT OF SUBSTANTIALLY TRIANGULAR CROSS SECTION AND THE OTHER SIDE PORTION OF WHICH EXTENDS LATERALLY AS A DECK ELEMENT FROM THE APEX OF SAID TRIANGULAR TUBULAR ELEMENT SUBSTANTIALLY PARALLEL TO THE BASE THEREOF A DISTANCE APPROXIMATELY EQUAL TO TWICE THE WIDTH OF SAID BASE, A PLURALITY OF SAID COMPONENT MEMBERS JOINED SIDE-BY-SIDE WITH THE BASES OF THE TRIANGULAR TUBULAR ELEMENTS SUBSTANTIALLY ABUTTING AND SECURED TOGETHER AND WITH THE LATERALLY EXTENDING DECK ELEMENTS DISPERSED IN OVERLAPPING RELATION AND SECURING MEANS INTEGRALLY FORMED IN EACH OF SAID DECK ELEMENTS FOR PREVENTING RELATIVE MOVEMENT THEREBETWEEN, THE BASES OF SAID TUBULAR ELEMENTS FORMING THE SUPPORTING BASE SURFACE OF SAID STRUCTURAL UNIT OF SINGLE METAL THICKNESS AND THE OVERLAPPING DECK ELEMENTS FORMING THE DECK SURFACE THEREOF OF DOUBLE METAL THICKNESS.
Claim 2
Dependent Claim
173 words
A LIGHTWEIGHT STRUCTURAL UNIT HAVING A SUPPORTING BASE SURFACE AND A LOAD-CARRYING DECK SURFACE MADE UP OF A PLURALITY OF SIMILAR COMPONENT MEMBERS EACH OF WHICH IS FORMED OF AN ELONGATED METAL SHEET OF ESSENTIALLY UNIFORM THICKNESS ONE SIDE PORTION OF WHICH IS BENT LONGITUDINALLY INTO A TUBULAR ELEMENT OF SUBSTANTIALLY TRIANGULAR CROSS SECTION AND THE OTHER SIDE PORTION OF WHICH EXTENDS LATERALLY AS A DECK ELEMENT FROM THE APEX OF SAID TRIANGULAR TUBULAR ELEMENT SUBSTANTIALLY PARALLEL TO THE BASE THEREOF A DISTANCE APPROXIMATELY EQUAL TO TWICE THE WIDTH OF SAID BASE, A PLURALITY OF SAID COMPONENT MEMBERS JOINED SIDE-BY-SIDE WITH THE BASES OF THE TRIANGULAR TUBULAR ELEMENTS SUBSTANTIALLY ABUTTING AND SECURED TOGETHER AND WITH THE LATERALLY EXTENDING DECK ELEMENTS DISPERSED IN OVERLAPPING RELATION AND SECURING MEANS INTEGRALLY FORMED IN EACH OF SAID DECK ELEMENTS FOR PREVENTING RELATIVE MOVEMENT THEREBETWEEN, THE BASES OF SAID TUBULAR ELEMENTS FORMING THE SUPPORTING BASE SURFACE OF SAID STRUCTURAL UNIT OF SINGLE METAL THICKNESS AND THE OVERLAPPING DECK ELEMENTS FORMING THE DECK SURFACE THEREOF OF DOUBLE METAL THICKNESS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |