US3047344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drilling tools for turbine drills
Assignee: Neyrpic SA
•
Filing: 1959-04-07
•
Granted: 1962-07-31
•
Expires: 1979-04-07
Abstract
No abstract record available.
Inventors
- 👤 Gros Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:07
CPC Classifications
E; E21; E21B; E21B10/00; E21B10/08; E21B10/22; E21B10/24; F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16C33/1095; F16C33/20; F16C33/201; F16C2352/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1747394A
Cited
US1649858A
Cited
US1820511A
Cited
US2058624A
Cited
US2104819A
Cited
US2654577A
Cited
GB695195A
Cited
US2686155A
Cited
GB711620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |