US3362857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous heat treating system
Assignee: Textron Inc
•
Filing: 1965-04-15
•
Granted: 1968-01-09
•
Expires: 1985-04-15
Abstract
No abstract record available.
Inventors
- 👤 Stewart Orald Leroy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:57
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/0031; B; B22; B22F; B22F1/00; B22F1/14; B22F1/142
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1446857A
Cited
US2234871A
Cited
US2799491A
Cited
US3163566A
Cited
US3150224A
Cited
US3245840A
Cited
US3164380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |