US3020610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of welding aluminum and other metals
Assignee: Erico International Corp
•
Filing: 1957-10-21
•
Granted: 1962-02-13
•
Expires: 1977-10-21
Abstract
No abstract record available.
Inventors
- 👤 Melvin F Rejdak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:23
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/34; B23K23/00; Y; Y10; Y10S; Y10S75/00; Y10S75/959
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
THE METHOD OF WELDING AN ALUMINUM ARTICLE TO ANOTHER METAL ARTICLE WHICH COMPRISES EXOTHERMICALLY RE-
Claim 2
Independent Claim
15 words
THE METHOD OF WELDING AN ALUMINUM ARTICLE TO ANOTHER METAL ARTICLE WHICH COMPRISES EXOTHERMICALLY RE-
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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) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |