Patent US3241489A successfully refreshed from Google Patents.
US3241489A
Expired / Lapsed
US
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Composite explosive signal transmission cord and method of making same
Assignee: Ensign Bickford Co
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Filing: 1963-05-06
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Granted: 1966-03-22
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Expires: 1983-05-06
Abstract
No abstract record available.
Inventors
- 👤 David J Andrew
- 👤 Alvin E Tanner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:04
CPC Classifications
F; F42; F42D; F42D1/00; F42D1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A HIGH EXPLOSIVE, COMPOSITE CORD OF UNITARY CONSTRUCTION HAVING A CONNECTING PORTION OF GENERALLY LOW BRISANCE, AT LEAST ONE DETONATING PORTION OF SUFFICIENT BRISANCE TO PROVIDE USEFUL EXPLOSIVE WORK INTERAL WITH SAID CONNECTING PORTION, A CORE CONTAINING A HIGH VELOCITY DETONATING EXPLOSIVE EXTENDING CONTINUOUSLY THROUGH SAID CONNECTING PORTION AND SAID DETONATING PORTION, THE EXPLOSIVE IN SAID CORE HAVING A DETONATION VELOCITY SUBSTANTIALLY GREATER THAN 2 FT./SEC. AND A CONTINUOUS SHEATH ENCASING THE CORE AND SAID PORTIONS THROUGHOUT THE LENGTH THEREOF.
Claim 2
Dependent Claim
80 words
A HIGH EXPLOSIVE, COMPOSITE CORD OF UNITARY CONSTRUCTION HAVING A CONNECTING PORTION OF GENERALLY LOW BRISANCE, AT LEAST ONE DETONATING PORTION OF SUFFICIENT BRISANCE TO PROVIDE USEFUL EXPLOSIVE WORK INTERAL WITH SAID CONNECTING PORTION, A CORE CONTAINING A HIGH VELOCITY DETONATING EXPLOSIVE EXTENDING CONTINUOUSLY THROUGH SAID CONNECTING PORTION AND SAID DETONATING PORTION, THE EXPLOSIVE IN SAID CORE HAVING A DETONATION VELOCITY SUBSTANTIALLY GREATER THAN 2 FT./SEC. AND A CONTINUOUS SHEATH ENCASING THE CORE AND SAID PORTIONS THROUGHOUT THE LENGTH THEREOF.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |