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US2623922A
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Electric pulse-forming shot-firing device
Assignee: Gulf Research and Development Co
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Filing: 1950-04-17
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Granted: 1952-12-30
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Expires: 1970-04-17
Abstract
No abstract record available.
Inventors
- 👤 Muffly Gary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:56
CPC Classifications
G; G01; G01V; G01V1/00; G01V1/24; G01V1/26; F; F42; F42D; F42D1/00; F42D1/04; F42D1/045; F42D1/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1890445A
Cited
DE582582C
Cited
US2313101A
Cited
US2395600A
Cited
US2370909A
Cited
US2490461A
Cited
US2465696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |