Patent US2858275A successfully refreshed from Google Patents.
US2496337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detonation meter
Assignee: Phillips Petroleum Co
•
Filing: 1944-02-29
•
Granted: 1950-02-07
•
Expires: 1964-02-29
Abstract
No abstract record available.
Inventors
- 👤 Boisblanc Deslonde R De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:05
CPC Classifications
G; G01; G01L; G01L23/00; G01L23/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1424361A
Cited
US1462109A
Cited
US2009997A
Cited
US2110015A
Cited
US2113011A
Cited
US2249420A
Cited
US2340714A
Cited
US2337522A
Cited
US2416614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |