US3482424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for forming and working metals under pressure
Assignee: Pressure Technology Corp of America
•
Filing: 1967-11-22
•
Granted: 1969-12-09
•
Expires: 1987-11-22
Abstract
No abstract record available.
Inventors
- 👤 Alfred Bobrowsky
- 👤 Eugene A Stack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:04
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3126096A
Cited
US629610A
Cited
US1199080A
Cited
US2558035A
Cited
US3344636A
Cited
US3306089A
Cited
US3243985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-08 | 1973-06-09 | 1973-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-08 | 1977-06-09 | 1977-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-08 | 1981-06-09 | 1981-12-09 | $7700.00 | Window Closed / Lapsed |