US3588867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roving limit indicator
Assignee: AT&T Inc
•
Filing: 1968-04-09
•
Granted: 1971-06-28
•
Expires: 1988-04-09
Abstract
Abstract A ROVING LIMIT INDICATOR FOR A WORKTABLE INCLUDES A SLIDING MEMBER HAVING A V-SHAPED GROOVE AND WHICH IS MOVED BY A V-SHAPED PROBE ON THE WORKTABLE ENGAGING THE V-SHAPED GROOVE IN THE MEMBER. WHEN THE TABLE REACHES A SELECTED POSITION, THE PROBE IS RAISED WITHIN THE GROOVE SUCH THAT THE TABLE MAY BE MOVED BY A LIMITED LENGTH OF MOVEMENT WITHOUT THE PROBE CONTACTING THE SIDES OF THE GROOVE. IF THE PROBE CONTACTS THE SIDES OF THE GROOVE AN ELECTRICAL CIRCUIT IS COMPLETED WHICH INDICATES THAT THE WORKTABLE HAS MOVED TO A LIMIT.
Inventors
- 👤 Richard A Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:26
CPC Classifications
B; B23; B23Q; B23Q16/00; B23Q16/005
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |