US2544522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of securing members with a predetermined torque by a composite cap screw
Assignee: Wright Aeronautical Corp
•
Filing: 1945-05-19
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Granted: 1951-03-06
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Expires: 1965-05-19
Abstract
No abstract record available.
Inventors
- 👤 Bertelsen Svend Iver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:28
CPC Classifications
F; F16; F16B; F16B31/00; F16B31/02; F16B33/00; F16B33/02; F16B2033/025; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49716; Y10T29/49764; Y10T29/49766; Y10T29/49826; Y10T29/49863; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/2066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1321967A
Cited
US1438601A
Cited
US1526367A
Cited
US1741720A
Cited
US1970071A
Cited
US2050464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |