Patent US2599770A successfully refreshed from Google Patents.
US2599770A
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Tool for drilling rocks and the like and drilling device comprising such tools
Assignee: "SONAPAR" PARTICIPATION S A Ste
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Filing: 1948-05-12
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Granted: 1952-06-10
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Expires: 1968-05-12
Abstract
No abstract record available.
Inventors
- 👤 Marcerou Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:11
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/02; B; B23; B23D; B23D59/00; B23D59/02; B23D59/025; B28; B28D; B28D1/00; B28D1/02; B28D1/04; B28D1/041; Y; Y10; Y10T; Y10T408/00; Y10T408/44; Y10T408/45; Y10T408/455; Y10T408/81; Y10T408/89; Y10T408/895; Y10T408/8957
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US295394A
Cited
US503051A
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US507210A
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US1611831A
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US1766108A
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US1887372A
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US2138006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |