US2940765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill holder
Assignee: ENTERPRISE MACHINE AND DEVELOPMENT Corp
•
Filing: 1957-06-27
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Granted: 1960-06-14
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Expires: 1977-06-27
Abstract
No abstract record available.
Inventors
- 👤 David K Appleby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:18
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/36; B23B31/005; B23B31/10; B23B31/12; B23B31/20; B23B31/201; B23B31/2012; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17017; Y10T408/00; Y10T408/65; Y10T408/665; Y10T408/89; Y10T408/907
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) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |