US3380321A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boring bar
Assignee: Individual
•
Filing: 1966-03-02
•
Granted: 1968-04-30
•
Expires: 1986-03-02
Abstract
No abstract record available.
Inventors
- 👤 Schaffler Willi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:56
CPC Classifications
B; B23; B23Q; B23Q17/00; B23Q17/22; B23Q17/2216; B23Q17/2225; Y; Y10; Y10T; Y10T408/00; Y10T408/21; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/8588; Y10T408/85892
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |