US2427377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contact means for electrically operated well tools
Assignee: Lane Wells Co
•
Filing: 1942-05-30
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Granted: 1947-09-16
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Expires: 1962-05-30
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Zschokke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:42
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/46; H01R13/52; H01R13/523; E; E21; E21B; E21B43/00; E21B43/11; E21B43/116; Y; Y10; Y10S; Y10S439/00; Y10S439/901; Y10S439/904; Y10S439/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-15 | 1951-03-17 | 1951-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-15 | 1955-03-17 | 1955-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-15 | 1959-03-17 | 1959-09-16 | $7700.00 | Window Closed / Lapsed |