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US2448322A
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Detonation meter
Assignee: Phillips Petroleum Co
•
Filing: 1943-09-20
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Granted: 1948-08-31
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Expires: 1963-09-20
Abstract
No abstract record available.
Inventors
- 👤 Raymond G Piety
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:10
CPC Classifications
G; G01; G01L; G01L23/00; G01L23/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2174176A
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US2287926A
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US2275675A
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GB517486A
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US2313666A
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US2340714A
Cited
GB553523A
Cited
US2355088A
Cited
US2337522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-31 | 1952-03-01 | 1952-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-31 | 1956-03-01 | 1956-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-31 | 1960-03-01 | 1960-08-31 | $7700.00 | Window Closed / Lapsed |