US2641312A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sectional block-type scarfing tip
Assignee: Airco Inc
•
Filing: 1947-08-23
•
Granted: 1953-06-09
•
Expires: 1967-08-23
Abstract
No abstract record available.
Inventors
- 👤 Howard G Hughey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:45
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US557506A
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US1371181A
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US2058388A
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US2220245A
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DE703339C
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US2288898A
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US2362536A
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US2418208A
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US2398884A
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US2435638A
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US2417670A
Cited
US2484123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |