US2881043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock-spectrum instrument
Assignee: Individual
•
Filing: 1954-12-06
•
Granted: 1959-04-07
•
Expires: 1974-12-06
Abstract
No abstract record available.
Inventors
- 👤 Harry L Rich
- 👤 Edward T Habib
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:37
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/30; G01N2203/00; G01N2203/003; G01N2203/0032; G01N2203/0039
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US636685A
Cited
US1519473A
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US2436529A
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US2441162A
Cited
US2521918A
Cited
US2616681A
Cited
US2695211A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |