US2963058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill and drill head
Assignee: Wood Conversion Co
•
Filing: 1957-02-19
•
Granted: 1960-12-06
•
Expires: 1977-02-19
Abstract
No abstract record available.
Inventors
- 👤 Lorien A Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:48
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/0009; B23Q1/0018; B23Q1/0027; B23Q1/0036; B23B; B23B51/00; B23B51/04; B23B51/0413; Y; Y10; Y10T; Y10T408/00; Y10T408/36; Y10T408/38; Y10T408/3817; Y10T408/44; Y10T408/45; Y10T408/453; Y10T408/60; Y10T408/89; Y10T408/895; Y10T408/8953
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1633752A
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US2167279A
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US2187651A
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US2234789A
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US2323694A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-06 | 1964-06-06 | 1964-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-06 | 1968-06-06 | 1968-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-06 | 1972-06-06 | 1972-12-06 | $7700.00 | Window Closed / Lapsed |