Patent US3176535A successfully refreshed from Google Patents.
US3176535A
Expired / Lapsed
US
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Ball bearing nut and screw assembly
Assignee: Motors Liquidation Co
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Filing: 1962-11-08
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Granted: 1965-04-06
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Expires: 1982-11-08
Abstract
No abstract record available.
Inventors
- 👤 Dan R Rowland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:10
CPC Classifications
F; F16; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/22; F16H25/2204; F16H25/2214; F16H25/2223; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19698; Y10T74/19702; Y10T74/19744; Y10T74/19749; Y10T74/19753
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A NUT AND SCREW DEVICE COMPRISING A NUT HAVING AN INTERNAL HELICAL GROOVE, A SCREW HAVING A CORRESPONDING EXTERNAL HELICAL GROOVE, SAID GROOVES COOPERATING WITH EACH OTHER TO FORM A RACE, A TRAIN OF BALLS LOADED IN SAID RACE PROVIDING A CONNECTION BETWEEN THE NUT AND SCREW, AND MEANS FOR RETURNING THE BALLS FROM ONE END OF THE RACE TO THE OTHER END OF THE RACE INCLUDING RETURN PASSAGEWAY
Claim 2
Dependent Claim
69 words
A NUT AND SCREW DEVICE COMPRISING A NUT HAVING AN INTERNAL HELICAL GROOVE, A SCREW HAVING A CORRESPONDING EXTERNAL HELICAL GROOVE, SAID GROOVES COOPERATING WITH EACH OTHER TO FORM A RACE, A TRAIN OF BALLS LOADED IN SAID RACE PROVIDING A CONNECTION BETWEEN THE NUT AND SCREW, AND MEANS FOR RETURNING THE BALLS FROM ONE END OF THE RACE TO THE OTHER END OF THE RACE INCLUDING RETURN PASSAGEWAY
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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |