Patent US2619730A successfully refreshed from Google Patents.
US2619730A
Expired / Lapsed
US
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Device for locating multiple bores for gang drilling
Assignee: Individual
•
Filing: 1948-12-29
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Granted: 1952-12-02
•
Expires: 1968-12-29
Abstract
No abstract record available.
Inventors
- 👤 Carter Haskell Clarence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:45
CPC Classifications
B; B25; B25H; B25H7/00; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/567
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1314184A
Cited
US1001658A
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US1258137A
Cited
US1335347A
Cited
US1431522A
Cited
US1601645A
Cited
US2342033A
Cited
US2497733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-02 | 1956-06-02 | 1956-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-02 | 1960-06-02 | 1960-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-02 | 1964-06-02 | 1964-12-02 | $7700.00 | Window Closed / Lapsed |