US2618962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic blast gauge
Assignee: Individual
•
Filing: 1945-09-17
•
Granted: 1952-11-25
•
Expires: 1965-09-17
Abstract
No abstract record available.
Inventors
- 👤 Harold J Plumley
- 👤 Clifford M Ryerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:19
CPC Classifications
G; G01; G01L; G01L23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1933733A
Cited
US2227906A
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US2323762A
Cited
US2309560A
Cited
US2301195A
Cited
US2350545A
Cited
US2337522A
Cited
US2448322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-25 | 1956-05-26 | 1956-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-25 | 1960-05-26 | 1960-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-25 | 1964-05-26 | 1964-11-25 | $7700.00 | Window Closed / Lapsed |