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Patent US3244021A successfully refreshed from Google Patents.
US3244021A
Expired / Lapsed
US
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Roller bearing nut
Assignee: Individual
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Filing: 1965-02-24
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Granted: 1966-04-05
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Expires: 1985-02-24
Abstract
No abstract record available.
Inventors
- 👤 Frank W Antila
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:11
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/22; F16H25/2247; F16H25/2266; B; B23; B23Q; B23Q5/00; B23Q5/22; B23Q5/34; B23Q5/38; B23Q5/40; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19744; Y10T74/19781; Y10T74/19791; Y10T74/19795
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN A THREADED STRUCTURE, A SCREW HAVING HELICALLY EXTENDING CONTINUOUS THREADS FORMED WITH OUTWARDLY CONVERGING SIDES AND CYLINDRICAL TOPS, A ROLLER HAVING SEPARATE AXIALLY SPACED CIRCULAR RINGS FORMED WITH OUTWARDLY CONVERGING SIDES DISPOSED BETWEEN THE THREADS OF SAID SCREW AND ADAPTED TO ENGAGE THE SIDES OF SAID THREADS, SAID ROLLER UPON ROTATION OF SAID SCREW BEING MOVED AXIALLY BY SAID RINGS, BEARING MEANS FOR SUPPORTING SAID ROLLER FOR ROTATION AND REACTION MEANS ENGAGING THE TOPS OF THE THREADS ON SAID SCREW AND RESISTING THE RADIAL THRUST OF SAID RINGS ON SAID THREADS.
Claim 2
Dependent Claim
92 words
IN A THREADED STRUCTURE, A SCREW HAVING HELICALLY EXTENDING CONTINUOUS THREADS FORMED WITH OUTWARDLY CONVERGING SIDES AND CYLINDRICAL TOPS, A ROLLER HAVING SEPARATE AXIALLY SPACED CIRCULAR RINGS FORMED WITH OUTWARDLY CONVERGING SIDES DISPOSED BETWEEN THE THREADS OF SAID SCREW AND ADAPTED TO ENGAGE THE SIDES OF SAID THREADS, SAID ROLLER UPON ROTATION OF SAID SCREW BEING MOVED AXIALLY BY SAID RINGS, BEARING MEANS FOR SUPPORTING SAID ROLLER FOR ROTATION AND REACTION MEANS ENGAGING THE TOPS OF THE THREADS ON SAID SCREW AND RESISTING THE RADIAL THRUST OF SAID RINGS ON SAID THREADS.
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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |