US2546950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubing anchor
Assignee: Wilson Foundry & Machine Co
•
Filing: 1949-04-22
•
Granted: 1951-03-27
•
Expires: 1969-04-22
Abstract
No abstract record available.
Inventors
- 👤 Jeddy D Nixon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:21
CPC Classifications
E; E21; E21B; E21B23/00; E21B23/04; E21B23/0411; E21B23/04115; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1021; Y10T279/1024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1972408A
Cited
US1056480A
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US1713150A
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US1941813A
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US1912805A
Cited
US2009164A
Cited
US2251125A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-26 | 1954-09-25 | 1955-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-26 | 1958-09-25 | 1959-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-26 | 1962-09-25 | 1963-03-27 | $7700.00 | Window Closed / Lapsed |