US2453038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
One-piece sucker rod
Assignee: Individual
•
Filing: 1945-05-05
•
Granted: 1948-11-02
•
Expires: 1965-05-05
Abstract
No abstract record available.
Inventors
- 👤 Peter F Rossmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:56
CPC Classifications
E; E21; E21B; E21B19/00; E21B19/22; E21B17/00; E21B17/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US287444A
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US527237A
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US851118A
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US1246329A
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US1607006A
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US1947969A
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DE555954C
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US1967517A
Cited
US2281850A
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US2318019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-02 | 1952-05-03 | 1952-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-02 | 1956-05-03 | 1956-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-02 | 1960-05-03 | 1960-11-02 | $7700.00 | Window Closed / Lapsed |