Patent US3196990A successfully refreshed from Google Patents.
US3196990A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tapered structural member and method of making the same
Assignee: McGraw Edison Co
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Filing: 1961-03-23
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Granted: 1965-07-27
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Expires: 1981-03-23
Abstract
No abstract record available.
Inventors
- 👤 Harold E Handley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:11
CPC Classifications
E; E04; E04H; E04H12/00; E04H12/02; E04H12/08; E04H12/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A HOLLOW, ELONGATED, TAPERED, STRUCTURAL MEMBER HAVING A BASE AND TOP PORTIONS, SAID MEMBER CONSISTING OF AT LEAST SIX LONGITUDINALLY EXTENING PERIPHERAL PORTIONS HAVING LONGITUDINAL EDGES, MEANS INTERCONNECTING ADJACENT PERIPHERAL PORTIONS ALONG THEIR LONGITUDINAL EDGES, HALF OF SAID PERIPHERAL PORTIONS BEING OF SUBSTANTIALLY UNIFORM WIDTH THROUGHOUT THEIR ENTIRE LENGTH, THE OTHER HALF OF SAID PERIPHERAL PORTIONS CONSTITUTING ISOSCELES TRIANGLES HAVING A BASE INCLUDED IN SAID BASE PORTION OF SAID STRUCTURAL MEMBER, SAID TRANGULAR PERIPHERAL PORTIONS BEING INTERPOSED BETWEEN SAID SUBSTANTIALLY UNIFORM WIDTH PERIPHERAL PORTIONS, SAID STRUCTURAL MEMBER TOP PORRTION BEING FORMED BY SAID SUBSTANTIALLY UNIFORM WIDTH PERIPHERAL PORTIONS.
Claim 2
Dependent Claim
98 words
A HOLLOW, ELONGATED, TAPERED, STRUCTURAL MEMBER HAVING A BASE AND TOP PORTIONS, SAID MEMBER CONSISTING OF AT LEAST SIX LONGITUDINALLY EXTENING PERIPHERAL PORTIONS HAVING LONGITUDINAL EDGES, MEANS INTERCONNECTING ADJACENT PERIPHERAL PORTIONS ALONG THEIR LONGITUDINAL EDGES, HALF OF SAID PERIPHERAL PORTIONS BEING OF SUBSTANTIALLY UNIFORM WIDTH THROUGHOUT THEIR ENTIRE LENGTH, THE OTHER HALF OF SAID PERIPHERAL PORTIONS CONSTITUTING ISOSCELES TRIANGLES HAVING A BASE INCLUDED IN SAID BASE PORTION OF SAID STRUCTURAL MEMBER, SAID TRANGULAR PERIPHERAL PORTIONS BEING INTERPOSED BETWEEN SAID SUBSTANTIALLY UNIFORM WIDTH PERIPHERAL PORTIONS, SAID STRUCTURAL MEMBER TOP PORRTION BEING FORMED BY SAID SUBSTANTIALLY UNIFORM WIDTH PERIPHERAL PORTIONS.
References Cited (Backward Citations)
US999267A
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US1574563A
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US1939530A
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US2023476A
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US2889614A
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US3039414A
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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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |