US3439858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brazing composition for carbonaceous materials
Assignee: Japan Atomic Energy Agency
•
Filing: 1966-11-04
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Granted: 1969-04-22
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Expires: 1986-11-04
Abstract
No abstract record available.
Inventors
- 👤 Yoshio Ando
- 👤 Tadato Fujimura
- 👤 Tadayoshi Tanaka
- 👤 Yoshihiko Inoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:36
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/001; B23K1/00; B23K1/14; B23K1/18; B23K35/22; B23K35/24; B23K35/30; B23K35/3053; B23K35/3066; B23K35/32; B23K35/325
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2739375A
Cited
US2908072A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |