US3664718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toolhead
Assignee: Heald Machine Co
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Filing: 1970-09-21
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Granted: 1972-05-23
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Expires: 1990-09-21
Abstract
Abstract THIS INVENTION RELATES TO A TOOLHEAD AND, MORE SPECIFICALLY, TO APPARATUS FOR MOUNTING A SPINDLE IN ANTI-FRICTION BEARINGS AND SUBJECTING THE BEARINGS TO A PRELOAD FORCE.
Inventors
- 👤 Herbert R Uhtenwoldt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:35
CPC Classifications
F; F16; F16C; F16C27/00; F16C27/04; B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/26; B23Q1/262; B23Q1/265; B24; B24B; B24B41/00; B24B41/04; F16C25/00; F16C25/06; F16C25/08; F16C35/00; F16C35/08; F16C35/12; F16C2322/00; F16C2322/39
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) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |