US730233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casing or tubing elevator.
Assignee: Individual
•
Filing: 1902-02-03
•
Granted: 1903-06-09
•
Expires: 1922-02-03
Abstract
No abstract record available.
Inventors
- 👤 Kenton Chickering
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:09
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/02; E21B19/06; E21B19/07; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7047; Y10T403/7051; Y10T403/7052; Y10T403/7056
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1906-06-08 | 1906-12-08 | 1907-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-06-08 | 1910-12-08 | 1911-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-06-08 | 1914-12-08 | 1915-06-09 | $7700.00 | Window Closed / Lapsed |