Patent US3481248A successfully refreshed from Google Patents.
US3481248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drawbar for machine tools
Assignee: LARS Corp A CORP OF WI
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Filing: 1967-12-28
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Granted: 1969-12-02
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Expires: 1987-12-28
Abstract
No abstract record available.
Inventors
- 👤 Donald F Engstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:03
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/24; B23B31/26; B23B31/261; B23B31/266; Y; Y10; Y10T; Y10T408/00; Y10T408/94; Y10T408/95; Y10T409/00; Y10T409/30; Y10T409/309352; Y10T409/309408; Y10T409/309464
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2101366A
Cited
US3374711A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |