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US2707666A
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US
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Device for conveying or transferring classified objects, in particular files, index cards or the like
Assignee: Individual
•
Filing: 1950-10-24
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Granted: 1955-05-03
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Expires: 1970-10-24
Abstract
No abstract record available.
Inventors
- 👤 Becker Otto Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:07
CPC Classifications
G; G06; G06K; G06K17/00; G06K17/0003; G06K17/0012; Y; Y10; Y10S; Y10S221/00; Y10S221/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US940878A
Cited
US1786112A
Cited
US2270896A
Cited
GB503320A
Cited
GB559255A
Cited
US2386520A
Cited
US2553003A
Cited
US2526823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-02 | 1958-11-01 | 1959-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-02 | 1962-11-01 | 1963-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-02 | 1966-11-01 | 1967-05-03 | $7700.00 | Window Closed / Lapsed |