US3480486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heating method for local annealing or stress relieving of parts of metal articles
Assignee: Kokusai Denki Electric Inc
•
Filing: 1966-06-02
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Granted: 1969-11-25
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Expires: 1986-06-02
Abstract
No abstract record available.
Inventors
- 👤 Yukio Tanaka
- 👤 Katsuji Soya
- 👤 Hitoshi Yamagishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:09
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/34; C21D1/40; C21D1/68; C21D1/70; C21D9/00; C21D9/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1634586A
Cited
US3314827A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |