US3413045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed lubricated reamer-stabilizer
Assignee: SMITH IND INTERNAT Inc
•
Filing: 1967-04-19
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Granted: 1968-11-26
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Expires: 1987-04-19
Abstract
No abstract record available.
Inventors
- 👤 Wohlfeld William Isaac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:38
CPC Classifications
F; F16; F16C; F16C13/00; F16C13/02; E; E21; E21B; E21B10/00; E21B10/08; E21B10/22; E21B10/24; E21B10/26; E21B10/28; E21B10/30; F16C2352/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3302983A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |