US2811331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamp for parts operating at different temperatures
Assignee: Curtiss Wright Corp
•
Filing: 1951-05-02
•
Granted: 1957-10-29
•
Expires: 1971-05-02
Abstract
No abstract record available.
Inventors
- 👤 Francis J Wiegand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:45
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/30; Y; Y10; Y10S; Y10S285/00; Y10S285/904
Claims Analysis
Total Claims: 0
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US2685166A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |