US3332349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Presplitting blasting assembly
Assignee: BARCLAYS/AMERICAN/BUSINESS CREDIT Inc A CORP OF CT
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Filing: 1965-08-16
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Granted: 1967-07-25
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Expires: 1985-08-16
Abstract
No abstract record available.
Inventors
- 👤 William L K Schwoyer
- 👤 Thomas P Dowling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:50
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A PRESPLITTING BLASTING ASSEMBLY COMPRISING, IN COMBINATION, A PLURALITY OF EXPLOSIVE CARTRIDGES, DISPOSED IN ALIGNMENT END TO END; A DETONATING FUSE LINE; AND A PLURALITY OF COUPLING MEANS JOINING SAID CARTRIDGES END TO END, ONE TO ANOTHER, AND SECURING SAID FUSE LINE AGAINST SAID CARTRIDGES, THEREBY FORMING A RIGID, CONTINUOUS EXPLOSIVE COLUMN, THE DETONATING FUSE LINE BEING THREADED BETWEEN THE CARTRIDGES AND THE COUPLING MEANS.
Claim 2
Dependent Claim
65 words
A PRESPLITTING BLASTING ASSEMBLY COMPRISING, IN COMBINATION, A PLURALITY OF EXPLOSIVE CARTRIDGES, DISPOSED IN ALIGNMENT END TO END; A DETONATING FUSE LINE; AND A PLURALITY OF COUPLING MEANS JOINING SAID CARTRIDGES END TO END, ONE TO ANOTHER, AND SECURING SAID FUSE LINE AGAINST SAID CARTRIDGES, THEREBY FORMING A RIGID, CONTINUOUS EXPLOSIVE COLUMN, THE DETONATING FUSE LINE BEING THREADED BETWEEN THE CARTRIDGES AND THE COUPLING MEANS.
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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |