US3263387A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabricated non-symmetrical beam
Assignee: Individual
•
Filing: 1965-08-09
•
Granted: 1966-08-02
•
Expires: 1985-08-09
Abstract
No abstract record available.
Inventors
- 👤 William M Simpson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:27
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/02; E04C3/12; E04C3/16; E04C3/04; E04C3/08; E04C3/083; E04C2003/0404; E04C2003/0408; E04C2003/0413; E04C2003/0426; E04C2003/0434; E04C2003/0443; E04C2003/0452
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A FABRICATED NON-SYMMETRICAL BEAM COMPRISING, IN COMBINATION, AN ELONGATED SUBSTANTIALLY PLANAR WEB HAVING ONE CONTINUOUS LONGITUDINAL EDGE AND ITS OTHER LONGITUDINAL EDGE SERRATED IN A TOOTHED CONFIGURATION; AN ELONGATED SUBSTANTIALLY PLANAR FIRST FLANGE DISPOSED PERPENDICULAR TO SAID WEB IN ENGAGEMENT WITH SAID CONTINUOUS LONGITUDINAL EDGE AND SECURED THERETO; AN ELONGATED SUBSTANTIALLY PLANAR SECOND FLANGE DISPOSED PERPENDICULAR TO SAID WEB IN ENGAGEMENT WITH SAID OTHER SERRATED LONGITUDINAL EDGE AND SECURED THERETO; AND SUPPORT MEANS FOR LOADING THE BEAM IN A PREDETERMINED RELATIONSHIP PLACING SAID FIRST PLANAR FLANGE IN COMPRESSION AND SAID SECOND PLANAR FLANGE IN TENSION; THE CROSS-SECTIONAL CONFIGURATION OF THE BEAM BEING SUCH THAT IN THE REGION OF MINIMUM CROSS-SECTIONAL AREA THE EQUATION
Claim 2
Dependent Claim
113 words
A FABRICATED NON-SYMMETRICAL BEAM COMPRISING, IN COMBINATION, AN ELONGATED SUBSTANTIALLY PLANAR WEB HAVING ONE CONTINUOUS LONGITUDINAL EDGE AND ITS OTHER LONGITUDINAL EDGE SERRATED IN A TOOTHED CONFIGURATION; AN ELONGATED SUBSTANTIALLY PLANAR FIRST FLANGE DISPOSED PERPENDICULAR TO SAID WEB IN ENGAGEMENT WITH SAID CONTINUOUS LONGITUDINAL EDGE AND SECURED THERETO; AN ELONGATED SUBSTANTIALLY PLANAR SECOND FLANGE DISPOSED PERPENDICULAR TO SAID WEB IN ENGAGEMENT WITH SAID OTHER SERRATED LONGITUDINAL EDGE AND SECURED THERETO; AND SUPPORT MEANS FOR LOADING THE BEAM IN A PREDETERMINED RELATIONSHIP PLACING SAID FIRST PLANAR FLANGE IN COMPRESSION AND SAID SECOND PLANAR FLANGE IN TENSION; THE CROSS-SECTIONAL CONFIGURATION OF THE BEAM BEING SUCH THAT IN THE REGION OF MINIMUM CROSS-SECTIONAL AREA THE EQUATION
References Cited (Backward Citations)
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Cited
US1644940A
Cited
GB487467A
Cited
DE826634C
Cited
US2941635A
Cited
US3141531A
Cited
US3140764A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |