US2642034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool joint lubricator
Assignee: Standard Oil Development Co
•
Filing: 1950-11-20
•
Granted: 1953-06-16
•
Expires: 1970-11-20
Abstract
No abstract record available.
Inventors
- 👤 Harold F Griffin
- 👤 Merrill C Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:23
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/006; F; F16; F16N; F16N7/00; F16N7/30; F16N7/32; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49885
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1384048A
Cited
US2386079A
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US2322211A
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US2370775A
Cited
US2324455A
Cited
US2412954A
Cited
US2480663A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |