US2464713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packer for wells
Assignee: OIL CENTER TOOL CO
•
Filing: 1944-10-05
•
Granted: 1949-03-15
•
Expires: 1964-10-05
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Penick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:01
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; E21B33/1291
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US218282A
Cited
US1173387A
Cited
US1994816A
Cited
US2075947A
Cited
US2137997A
Cited
US2160804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |