US2581734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument case and cover
Assignee: Triplett Electrical Instrument Co
•
Filing: 1950-01-11
•
Granted: 1952-01-08
•
Expires: 1970-01-11
Abstract
No abstract record available.
Inventors
- 👤 William R Triplett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:29
CPC Classifications
G; G01; G01R; G01R1/00; G01R1/02; H; H05; H05K; H05K5/00; H05K5/02; H05K5/03
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |