US3282017A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of providing increased strength to composite beam construction
Assignee: Individual
•
Filing: 1963-05-14
•
Granted: 1966-11-01
•
Expires: 1983-05-14
Abstract
No abstract record available.
Inventors
- 👤 Frank C Rothermel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:09
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/02; E04C3/29; E04C3/293; E04C3/294; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49623; Y10T29/49632
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A METHOD OF FABRICATING A COMPOSITE BEAM FOR A LOAD-BEARING STRUCTURE COMPRISING THE STEPS OF: (A) ROLLING A STEEL I-BEAM HAVING A PAIR OF FLANGES OF EQUAL THICKNESS AND CROSS-SECTIONAL AREA INTERCONNECTED BY A WEB WHICH LIES CENTRALLY OF AND PERPENDICULAR TO SAID FLANGES; (B) REMOVING EQUAL WIDTHS AND THICKNESS FROM BOTH SIDES OF THE UPPER FLANGE OF SAID BEAM ALONG SUBSTANTIALLY CONTINUOUS LINES WHICH EXTEND ALONG A MAJOR LONGITUDINAL PORTION OF SAID BEAM;
Claim 2
Independent Claim
74 words
A METHOD OF FABRICATING A COMPOSITE BEAM FOR A LOAD-BEARING STRUCTURE COMPRISING THE STEPS OF: (A) ROLLING A STEEL I-BEAM HAVING A PAIR OF FLANGES OF EQUAL THICKNESS AND CROSS-SECTIONAL AREA INTERCONNECTED BY A WEB WHICH LIES CENTRALLY OF AND PERPENDICULAR TO SAID FLANGES; (B) REMOVING EQUAL WIDTHS AND THICKNESS FROM BOTH SIDES OF THE UPPER FLANGE OF SAID BEAM ALONG SUBSTANTIALLY CONTINUOUS LINES WHICH EXTEND ALONG A MAJOR LONGITUDINAL PORTION OF SAID BEAM;
References Cited (Backward Citations)
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Cited
US1725439A
Cited
US2028169A
Cited
US2271592A
Cited
US2617179A
Cited
GB827093A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-31 | 1970-05-02 | 1970-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-31 | 1974-05-02 | 1974-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-31 | 1978-05-02 | 1978-11-01 | $7700.00 | Window Closed / Lapsed |