US3023015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible bit drill attachment
Assignee: Individual
•
Filing: 1960-01-05
•
Granted: 1962-02-27
•
Expires: 1980-01-05
Abstract
No abstract record available.
Inventors
- 👤 Melvin W Pankow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:34
CPC Classifications
B; B25; B25B; B25B21/00; B25B21/007; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/22; B23B51/00; Y; Y10; Y10S; Y10S279/00; Y10S279/904; Y10S279/905; Y10T; Y10T279/00; Y10T279/17; Y10T279/17008; Y10T279/17761; Y10T279/17811; Y10T279/34; Y10T279/3406; Y10T408/00; Y10T408/73; Y10T408/94
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) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |