US3011369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extension guide for drills
Assignee: Individual
•
Filing: 1960-11-18
•
Granted: 1961-12-05
•
Expires: 1980-11-18
Abstract
No abstract record available.
Inventors
- 👤 John P Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:18
CPC Classifications
B; B23; B23B; B23B49/00; B23B49/02; B23B45/00; B23B45/003; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/557; Y10T408/558; Y10T408/89; Y10T408/907; Y10T408/94; Y10T408/95
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1408802A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |