US2340016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil well pump packing box
Assignee: Individual
•
Filing: 1942-04-01
•
Granted: 1944-01-25
•
Expires: 1962-04-01
Abstract
No abstract record available.
Inventors
- 👤 Charles L Pruiett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:59
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/08; F; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/184; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17761; Y10T279/17803
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) | 1947-01-24 | 1947-07-26 | 1948-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-01-24 | 1951-07-26 | 1952-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-01-24 | 1955-07-26 | 1956-01-25 | $7700.00 | Window Closed / Lapsed |