Patent US3349705A successfully refreshed from Google Patents.
US3349705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Presplitting device
Assignee: Dow Chemical Co
•
Filing: 1966-01-21
•
Granted: 1967-10-31
•
Expires: 1986-01-21
Abstract
No abstract record available.
Inventors
- 👤 John S Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:13
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
AN EXPLOSIVE ARTICLE WHICH COMRISES: (A) A HOLLOW FLEXIBLE TUBULAR SHEATH, AND (B) A PLURALITY OF EXPLOSIVE STRANDS SPACED APART AT A PREDETERMINED ANGULAR DISTANCE FROM EACH OTHER AROUND THE PERIPHERY OF THE SHEATH; THE STRANDS BE-
Claim 2
Dependent Claim
37 words
AN EXPLOSIVE ARTICLE WHICH COMRISES: (A) A HOLLOW FLEXIBLE TUBULAR SHEATH, AND (B) A PLURALITY OF EXPLOSIVE STRANDS SPACED APART AT A PREDETERMINED ANGULAR DISTANCE FROM EACH OTHER AROUND THE PERIPHERY OF THE SHEATH; THE STRANDS BE-
References Cited (Backward Citations)
US3118374A
Cited
US2877708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |