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US2606793A
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Tool guide
Assignee: Technical Oil Tool Corp
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Filing: 1950-02-17
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Granted: 1952-08-12
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Expires: 1970-02-17
Abstract
No abstract record available.
Inventors
- 👤 Suter Oswald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:55
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/10; E21B17/1014; E21B17/1021; E21B17/1028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US874251A
Cited
US1032454A
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US1299876A
Cited
US2151416A
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US2195871A
Cited
US2221137A
Cited
US2362371A
Cited
US2376120A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-12 | 1956-02-11 | 1956-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-12 | 1960-02-11 | 1960-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-12 | 1964-02-11 | 1964-08-12 | $7700.00 | Window Closed / Lapsed |