Patent US2722155A successfully refreshed from Google Patents.
US2722155A
Expired / Lapsed
US
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Manufacture of electric blasting caps
Assignee: Olin Corp
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Filing: 1950-11-01
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Granted: 1955-11-01
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Expires: 1970-11-01
Abstract
No abstract record available.
Inventors
- 👤 Theron F Pauls
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:11
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/10; F42B3/195; F42B3/198
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) | 1958-10-31 | 1959-05-02 | 1959-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-31 | 1963-05-02 | 1963-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-31 | 1967-05-02 | 1967-11-01 | $7700.00 | Window Closed / Lapsed |