Patent US2368955A successfully refreshed from Google Patents.
Patent US2549939A successfully refreshed from Google Patents.
US2549939A
Expired / Lapsed
US
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Threaded fastening device
Assignee: Elastic Stop Nut Corp
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Filing: 1944-06-16
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Granted: 1951-04-24
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Expires: 1964-06-16
Abstract
No abstract record available.
Inventors
- 👤 John D Shaw
- 👤 Jerome F Kuzmick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:14
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/947; Y10T; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12292
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US189984A
Cited
US262193A
Cited
US1071841A
Cited
US2102489A
Cited
US2275420A
Cited
US2300302A
Cited
US2309828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |