Patent US3170400A successfully refreshed from Google Patents.
US3170400A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detonating means securing device
Assignee: Zeneca Inc
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Filing: 1960-11-23
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Granted: 1965-02-23
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Expires: 1980-11-23
Abstract
No abstract record available.
Inventors
- 👤 Nelson Richard Groff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:43
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
AN EXPLOSIVE ASSEMBLY COMPRISING AN EXPLOSIVE CHARGE CONTAINING A WELL, SAID WELL BEING OF A SIZE TO RECEIVE AN ELECTRIC DETONATOR, A LENGTH OF FILAMENT TAPE COVERING SAID WELL AND SECURED TO SAID EXPLOSIVE CHARGE ON EITHER SIDE OF SAID WELL, SAID FILAMENT TAPE HAVING A SLIT THEREIN POSITIONED IMMEDIATELY OVER SAID WELL, SAID SLIT BEING PARALLEL TO THE DIRECTION OF THE LONGEST FILAMENTS IN SAID LENGTH OF FILAMENT TAPE.
Claim 2
Dependent Claim
70 words
AN EXPLOSIVE ASSEMBLY COMPRISING AN EXPLOSIVE CHARGE CONTAINING A WELL, SAID WELL BEING OF A SIZE TO RECEIVE AN ELECTRIC DETONATOR, A LENGTH OF FILAMENT TAPE COVERING SAID WELL AND SECURED TO SAID EXPLOSIVE CHARGE ON EITHER SIDE OF SAID WELL, SAID FILAMENT TAPE HAVING A SLIT THEREIN POSITIONED IMMEDIATELY OVER SAID WELL, SAID SLIT BEING PARALLEL TO THE DIRECTION OF THE LONGEST FILAMENTS IN SAID LENGTH OF FILAMENT TAPE.
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |