US2979188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stripper mechanism
Assignee: Olin Corp
•
Filing: 1958-04-14
•
Granted: 1961-04-11
•
Expires: 1978-04-14
Abstract
No abstract record available.
Inventors
- 👤 Albert J Duffield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:17
CPC Classifications
B; B21; B21C; B21C35/00; B21C35/02; B21D; B21D45/00; B21D45/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-10 | 1964-10-10 | 1965-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-10 | 1968-10-10 | 1969-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-10 | 1972-10-10 | 1973-04-11 | $7700.00 | Window Closed / Lapsed |