US2658513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic selection control for drum-type storage files
Assignee: Individual
•
Filing: 1943-11-26
•
Granted: 1953-11-10
•
Expires: 1963-11-26
Abstract
No abstract record available.
Inventors
- 👤 Jerome L Clough
- 👤 Chauncey C Clough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:53
CPC Classifications
G; G06; G06K; G06K17/00; G06K17/0003
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) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |