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US3435764A
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US
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Dormant explosive device
Assignee: Ensign Bickford Co
•
Filing: 1967-11-13
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Granted: 1969-04-01
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Expires: 1987-11-13
Abstract
No abstract record available.
Inventors
- 👤 Stanley R Kelly
- 👤 John M Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:03
CPC Classifications
E; E04; E04H; E04H15/00; E04H15/32; C; C06; C06C; C06C5/00; C06C5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1923761A
Cited
US3169481A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |