US2691815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid phase bonding of metals
Assignee: Metals and Controls Corp
•
Filing: 1951-01-04
•
Granted: 1954-10-19
•
Expires: 1971-01-04
Abstract
No abstract record available.
Inventors
- 👤 Helmich W Boessenkool
- 👤 Durst George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:37
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1043576A
Cited
US1130077A
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US1667787A
Cited
US2414511A
Cited
US2484118A
Cited
US2522408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-18 | 1958-04-19 | 1958-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-18 | 1962-04-19 | 1962-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-18 | 1966-04-19 | 1966-10-19 | $7700.00 | Window Closed / Lapsed |