Patent US3258891A successfully refreshed from Google Patents.
US3258891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightweight prefabricated structural element
Assignee: Individual
•
Filing: 1961-08-17
•
Granted: 1966-07-05
•
Expires: 1981-08-17
Abstract
No abstract record available.
Inventors
- 👤 Haberbosch Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:13
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/34; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12347
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A CONSTRUCTION ELEMENT COMPRISING A BOTTOM PLATE, A TOP PLATE AND A NETWORK OF UNDULATING STRUTS OF IDENTICAL HEIGHT AND CONFIGURATION INTERCONNECTING SAID PLATES IN PARALLEL-SPACED RELATIONSHIP; SAID NETWORK CONSISTING OF A FIRST ARRAY OF PARALLEL STRUTS WELDED AT THE BOTTOM PORTIONS OF ITS UNDULATIONS TO SAID BOTTOM PLATE, AND A SECOND ARRAY OF PARALLEL STRUTS EXTENDING TRANSVERSE TO AND OVERLYING SAID FIRST ARRAY AND WELDED AT THE TOP PORTIONS OF ITS UNDULATIONS TO SAID TOP PLATE AND WELDED AT THE TOP PORTIONS OF THE UNDULATIONS OF SAID STRUTS OF THE FIRST ARRAY, SAID STRUTS OF SAID SECOND ARRAY BEING WELDED AT THE BOTTOM PORTIONS OF THEIR UNDULATIONS TO THE BOTTOM PORTIONS OF THE FIRST ARAY, THE STRUTS OF EACH ARRAY BEING PARALLEL AND EQUISPACED BY A DISTANCE CORRESPONDING TO HALF AN UNDULATION WHEREBY THE TOP AND BOTTOM PORTIONS OF EACH STRUT COINCIDE WITH THE LOCATIONS AT WHICH THE TOP AND BOTTOM PORTIONS OF THE STRUTS
Claim 2
Dependent Claim
156 words
A CONSTRUCTION ELEMENT COMPRISING A BOTTOM PLATE, A TOP PLATE AND A NETWORK OF UNDULATING STRUTS OF IDENTICAL HEIGHT AND CONFIGURATION INTERCONNECTING SAID PLATES IN PARALLEL-SPACED RELATIONSHIP; SAID NETWORK CONSISTING OF A FIRST ARRAY OF PARALLEL STRUTS WELDED AT THE BOTTOM PORTIONS OF ITS UNDULATIONS TO SAID BOTTOM PLATE, AND A SECOND ARRAY OF PARALLEL STRUTS EXTENDING TRANSVERSE TO AND OVERLYING SAID FIRST ARRAY AND WELDED AT THE TOP PORTIONS OF ITS UNDULATIONS TO SAID TOP PLATE AND WELDED AT THE TOP PORTIONS OF THE UNDULATIONS OF SAID STRUTS OF THE FIRST ARRAY, SAID STRUTS OF SAID SECOND ARRAY BEING WELDED AT THE BOTTOM PORTIONS OF THEIR UNDULATIONS TO THE BOTTOM PORTIONS OF THE FIRST ARAY, THE STRUTS OF EACH ARRAY BEING PARALLEL AND EQUISPACED BY A DISTANCE CORRESPONDING TO HALF AN UNDULATION WHEREBY THE TOP AND BOTTOM PORTIONS OF EACH STRUT COINCIDE WITH THE LOCATIONS AT WHICH THE TOP AND BOTTOM PORTIONS OF THE STRUTS
References Cited (Backward Citations)
US1939732A
Cited
GB395540A
Cited
US2149008A
Cited
GB561214A
Cited
US2796839A
Cited
GB783185A
Cited
FR1244800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |