Patent US617647A successfully refreshed from Google Patents.
Patent US3620109A successfully refreshed from Google Patents.
US3620109A
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US
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Machine tool with facing tool slide for automatic tool changing
Assignee: Gebrueder Heller Maschinenfabrik GmbH
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Filing: 1969-07-15
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Granted: 1971-11-16
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Expires: 1989-07-15
Abstract
Abstract A MACHINE TOOL WITH AUTOMATIC TOOL CHANGING IS DESCRIBED WITH A TOOL HOLDER HAVING A CENTRAL TIGHTENING SCREW AND LOCK AND A FACE SLIDE INCLUDING AN INDEXING PIN AS WELL AS TWO COMPRESATING WEIGHT THREADED SPINDLES.
Inventors
- 👤 Alfred W Durr
- 👤 Otto Gunsser
- 👤 Hubert H Heller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:11
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/155; B23Q3/157; B23Q3/15713; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30448; Y10T483/00; Y10T483/17; Y10T483/1733; Y10T483/1736; Y10T483/1743; Y10T82/00; Y10T82/25; Y10T82/2529
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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |