US3168171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated sheet metal nut
Assignee: Individual
•
Filing: 1961-12-26
•
Granted: 1965-02-02
•
Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 Melvin A Gaare
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:52
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/02; E; E04; E04C; E04C2/00; E04C2/02; E04C2/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A DUCTILE SHEET HAVING A SCREW RECEIVING FASTENER FORMED THEREIN IN COMBINATION WITH A SCREW HAVING A THREAD AND A LEAD AND HAVING A GREATER HARDNESS THAN THE SHEET, THE SCREW RECEIVING FASTENER COMPRISING A PIERCED TAB CONSISTING OF A PORTION OF THE SHEET AND FOLDED OVER TO LIE ADJACENT AND PARALLEL TO THE SHEET, THE TAB AND THE ADJACENT PORTION OF THE SHEET HAVING PRE-PUNCHED SUPERIMPOSED CROSSOVER SLOTS ARRANGED AT AN ANGLE OF AT LEAST SIXTY DEGREES WITH RESPECT TO EACH OTHER AND OF A WIDTH SLIGHTLY LESS THAN THE MAJOR DIAMETER OF THE SCREW THREAD, AND THE SHEET BEING OF A THICKNESS SLIGHTLY GREATER THAN HALF THE LEAD OF THE SCREW.
Claim 2
Dependent Claim
113 words
A DUCTILE SHEET HAVING A SCREW RECEIVING FASTENER FORMED THEREIN IN COMBINATION WITH A SCREW HAVING A THREAD AND A LEAD AND HAVING A GREATER HARDNESS THAN THE SHEET, THE SCREW RECEIVING FASTENER COMPRISING A PIERCED TAB CONSISTING OF A PORTION OF THE SHEET AND FOLDED OVER TO LIE ADJACENT AND PARALLEL TO THE SHEET, THE TAB AND THE ADJACENT PORTION OF THE SHEET HAVING PRE-PUNCHED SUPERIMPOSED CROSSOVER SLOTS ARRANGED AT AN ANGLE OF AT LEAST SIXTY DEGREES WITH RESPECT TO EACH OTHER AND OF A WIDTH SLIGHTLY LESS THAN THE MAJOR DIAMETER OF THE SCREW THREAD, AND THE SHEET BEING OF A THICKNESS SLIGHTLY GREATER THAN HALF THE LEAD OF THE SCREW.
References Cited (Backward Citations)
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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) | 1968-02-02 | 1968-08-03 | 1969-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-02 | 1972-08-03 | 1973-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-02 | 1976-08-03 | 1977-02-02 | $7700.00 | Window Closed / Lapsed |