US2615236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blade edge welding technique
Assignee: Curtiss Wright Corp
•
Filing: 1947-06-27
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Granted: 1952-10-28
•
Expires: 1967-06-27
Abstract
No abstract record available.
Inventors
- 👤 Walter H Stulen
- 👤 Klein Mathias
- 👤 Edwin L Tichenor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:42
CPC Classifications
B; B23; B23K; B23K31/00; B23K31/02; B23K5/00; B23K5/006; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/49336; Y10T29/49339
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2224145A
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US2249723A
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US2308344A
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US2362505A
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US2392281A
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US2467371A
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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) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |