US3061912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabrication of porous sheet material by brazing
Assignee: Curtiss Wright Corp
•
Filing: 1957-04-04
•
Granted: 1962-11-06
•
Expires: 1977-04-04
Abstract
No abstract record available.
Inventors
- 👤 Emil O Kalil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:47
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/002; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/496
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2061850A
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US2820985A
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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) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |