US2453079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prestressed sucker rod
Assignee: Individual
•
Filing: 1944-08-05
•
Granted: 1948-11-02
•
Expires: 1964-08-05
Abstract
No abstract record available.
Inventors
- 👤 Peter F Rossmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:36
CPC Classifications
E; E21; E21B; E21B17/00; Y; Y10; Y10S; Y10S138/00; Y10S138/05; Y10S29/00; Y10S29/042; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/20408; Y10T74/21; Y10T74/2142
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1326259A
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US851118A
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US1101729A
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US1514166A
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US1636057A
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GB360521A
Cited
US1967827A
Cited
US2003127A
Cited
US2147552A
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 |