Patent US2395121A successfully refreshed from Google Patents.
US2395121A
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US
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Drilling head unit
Assignee: Carter Carburetor Corp
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Filing: 1942-07-17
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Granted: 1946-02-19
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Expires: 1962-07-17
Abstract
No abstract record available.
Inventors
- 👤 Hodges Ralph
- 👤 John H Klasey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:15
CPC Classifications
B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q2705/00; B23Q2705/02; B23Q2705/023; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5168; Y10T29/5173; Y10T29/5174; Y10T408/00; Y10T408/16; Y10T408/17; Y10T408/173; Y10T408/52; Y10T408/54; Y10T408/545; Y10T408/65; Y10T408/675; Y10T408/83; Y10T408/85; Y10T408/858; Y10T82/00; Y10T82/12; Y10T82/25; Y10T82/2529
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-02-18 | 1949-08-20 | 1950-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-02-18 | 1953-08-20 | 1954-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-02-18 | 1957-08-20 | 1958-02-19 | $7700.00 | Window Closed / Lapsed |