Patent US3076208A successfully refreshed from Google Patents.
US3076208A
Expired / Lapsed
US
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Method of making setscrew with mutilated threads
Assignee: Individual
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Filing: 1960-04-27
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Granted: 1963-02-05
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Expires: 1980-04-27
Abstract
No abstract record available.
Inventors
- 👤 Moore Harrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:46
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/12; F16B37/122; B; B21; B21H; B21H3/00; B21H3/02; B21H3/04; B21H3/06; B21K; B21K1/00; B21K1/44; B21K1/46; B21K1/56; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/938
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
86 words
A METHOD OF MAKING A HEADLESS SCREW-THREADED MEMBER FRICTIONALLY RESISTANT TO BEING TURNED IN A THREADED HOLE, WHICH COMPRISES PASSING THE MEMBER LONGITUDINALLY THROUGH THE NIP OF TWO HARDENED ROLLS SPACED APART SLIGHTLY LESS THAN THE CREST DIAMETER OF THE MEMBER, WHEREBY TO FORM SMALL BURRS AT DIAMETRICALLY OPPOSITE POINTS ON THE CREST OF EACH TURN OF THREAD, AND SHAVING OFF THE CRESTS OF A FEW TURNS OF SAID THREAD AT THE ENTERING END OF THE MEMBER TO REMOVE COMPLETELY THE BURRS ON SAID FEW TURNS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |