US3470624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tempering furnaces and method
Assignee: Safran Transmission Systems SAS
•
Filing: 1967-12-05
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Granted: 1969-10-07
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Expires: 1987-12-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph Plotkowiak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:58
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/62; C21D1/667; Y; Y10; Y10S; Y10S165/00; Y10S165/903; Y10S165/908
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB930063A
Cited
US3159387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-06 | 1973-04-07 | 1973-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-06 | 1977-04-07 | 1977-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-06 | 1981-04-07 | 1981-10-07 | $7700.00 | Window Closed / Lapsed |