Patent US2655343A successfully refreshed from Google Patents.
US2655343A
Expired / Lapsed
US
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Drilling device
Assignee: Individual
•
Filing: 1949-10-06
•
Granted: 1953-10-13
•
Expires: 1969-10-06
Abstract
No abstract record available.
Inventors
- 👤 Pestarini Joseph Maximus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:18
CPC Classifications
E; E21; E21B; E21B6/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2051249A
Cited
US2020945A
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US1892517A
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US1987417A
Cited
GB420167A
Cited
US2055240A
Cited
US2038380A
Cited
US2049389A
Cited
US2091680A
Cited
US2079465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-12 | 1957-04-13 | 1957-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-12 | 1961-04-13 | 1961-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-12 | 1965-04-13 | 1965-10-13 | $7700.00 | Window Closed / Lapsed |