US2542375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nut structure
Assignee: Individual
•
Filing: 1944-06-21
•
Granted: 1951-02-20
•
Expires: 1964-06-21
Abstract
No abstract record available.
Inventors
- 👤 Carel T Torresen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:54
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04; F16B37/044; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/965; Y10S411/966; Y10S411/97; Y10S411/971
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US240032A
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US462914A
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GB191302447A
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US1931011A
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US2144553A
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US2249923A
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US2299158A
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US2333386A
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US2358890A
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US2413669A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-19 | 1954-08-21 | 1955-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-19 | 1958-08-21 | 1959-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-19 | 1962-08-21 | 1963-02-20 | $7700.00 | Window Closed / Lapsed |