Patent US2998642A successfully refreshed from Google Patents.
US2998642A
Expired / Lapsed
US
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Bonding of titanium to steel
Assignee: Chicago Dev Corp
•
Filing: 1958-01-16
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Granted: 1961-09-05
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Expires: 1978-01-16
Abstract
No abstract record available.
Inventors
- 👤 Frank X Mccawley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:17
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/001; B23K35/005; B32; B32B; B32B15/00; B32B15/01; B32B15/013; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12806
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US986654A
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US1037143A
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US1155427A
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US1374110A
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US1664741A
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US1888815A
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US2785451A
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US2813332A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |