US3408178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Age hardenable stainless steel alloy
Assignee: Carpenter Steel Co
•
Filing: 1967-06-27
•
Granted: 1968-10-29
•
Expires: 1987-06-27
Abstract
No abstract record available.
Inventors
- 👤 Lewis P Myers
- 👤 Jr Kermit J Goda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:59
CPC Classifications
C; C22; C22C; C22C38/00; C22C38/18; C22C38/40; C22C38/50; C22C38/42; C22C38/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3347663A
Cited
US3357868A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |