Patent US3564666A successfully refreshed from Google Patents.
US3564666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the temporary fastening of parts on a substructure by means of screws
Assignee: Individual
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Filing: 1968-10-24
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Granted: 1971-02-23
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Expires: 1988-10-24
Abstract
Abstract THIS DISCLOSURE RELATES TO A DEVICE FOR THE FASTENING OF PARTS ON A SUBSTRUCTURE BY MEANS OF SCREWS. THE DEVICE MAY BE PROVIDED WITH ONE OR MORE SCREW RECEIVABLE SLOTS HAVING PARALLEL WALLS WTH EACH SLOT BEING OF A WIDTH CORRESPONDING TO THE DIAMETER OF THE THREAD OF THE INTENDED SCREW. THE SLOT WALLS CARRY THREAD-LIKE PROFILES TO FIT THE INTENDED SCREW. THE OPPOSING PROFILES MAY EITHER SLOPE IN THE SAME DIRECTION TO FACILITATE THE FEEDING OF A SCREW INTO THE SLOT FROM ONE END TOWARD THE CENTER THEREOF OR THE PROFILES MAY SLOPE IN THE OPPOSITE DIRECTIONS TO FACILITATE TE INSERTION OF A SCREW THROUGH A NORMAL SCREWING ACTIONS.
Inventors
- 👤 Siegfried August Dol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:29
CPC Classifications
F; F16; F16B; F16B5/00; F16B5/02; F16B5/0216; F16B5/0225; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3401; Y10T24/3416; Y10T24/3419
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |