Patent US2107068A successfully refreshed from Google Patents.
Patent US1036946A successfully refreshed from Google Patents.
Patent US3545326A successfully refreshed from Google Patents.
US3545326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swing type arbor attachment for quick tool changes
Assignee: WITHROW ENTERPRISES INC AN OH CORP
•
Filing: 1968-05-16
•
Granted: 1970-12-08
•
Expires: 1988-05-16
Abstract
No abstract record available.
Inventors
- 👤 John F Madachy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:53
CPC Classifications
B; B23; B23D; B23D19/00; B23D19/04; B23D19/06; B23D35/00; B23D35/008; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/6584; Y10T83/6603; Y10T83/727; Y10T83/744; Y10T83/745; Y10T83/768; Y10T83/7747; Y10T83/7809; Y10T83/783; Y10T83/7843
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) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |