Patent US2867140A successfully refreshed from Google Patents.
US2867140A
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Core drill
Assignee: METAL CUTTING TOOLS Inc
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Filing: 1955-12-15
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Granted: 1959-01-06
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Expires: 1975-12-15
Abstract
No abstract record available.
Inventors
- 👤 Sidney A Getts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:36
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/0009; B23Q1/0018; B23Q1/0027; B23Q1/0036; B23B; B23B51/00; B23B51/04; B23B51/0486; B23B2240/00; B23B2240/24; Y; Y10; Y10T; Y10T408/00; Y10T408/44; Y10T408/45; Y10T408/76; 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) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |