US2456594A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brazing alloy
Assignee: Individual
•
Filing: 1945-03-22
•
Granted: 1948-12-14
•
Expires: 1965-03-22
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Polak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:32
CPC Classifications
C; C22; C22C; C22C18/00; B; B23; B23K; B23K35/00; B23K35/22; B23K35/24; B23K35/28; B23K35/282; C22C20/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2087716A
Cited
FR798964A
Cited
US2288655A
Cited
US2362892A
Cited
US2138637A
Cited
US2235634A
Cited
US2310231A
Cited
US2279284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-14 | 1952-06-14 | 1952-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-14 | 1956-06-14 | 1956-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-14 | 1960-06-14 | 1960-12-14 | $7700.00 | Window Closed / Lapsed |