Patent US2252457A successfully refreshed from Google Patents.
US2167338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding and setting well casing
Assignee: U C MURCELL Inc
•
Filing: 1937-07-26
•
Granted: 1939-07-25
•
Expires: 1957-07-26
Abstract
No abstract record available.
Inventors
- 👤 Uriel C Murcell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:05
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/02; E21B43/10; E21B17/00; E21B17/02; E21B17/08; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49895; Y10T29/49902; Y10T29/49904
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1942-07-24 | 1943-01-23 | 1943-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-07-24 | 1947-01-23 | 1947-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-07-24 | 1951-01-23 | 1951-07-25 | $7700.00 | Window Closed / Lapsed |