US3057296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosive charge coupler
Assignee: Pan American Petroleum Corp
•
Filing: 1959-02-16
•
Granted: 1962-10-09
•
Expires: 1979-02-16
Abstract
No abstract record available.
Inventors
- 👤 Silverman Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:35
CPC Classifications
F; F42; F42D; F42D1/00; F42D1/04; G; G01; G01V; G01V1/00; G01V1/02; G01V1/04; G01V1/06; G01V1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1021934A
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US2590671A
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US2317354A
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US2377151A
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US2535518A
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US2707437A
Cited
US2708408A
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US2808894A
Cited
US2842056A
Cited
US2707438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |