US3672740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support for rotary filing system
Assignee: Hutchinson Aerospace and Industry Inc
•
Filing: 1971-03-04
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Granted: 1972-06-27
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Expires: 1991-03-04
Abstract
Abstract AN IMPROVED SUPPORT FOR A ROTARY FILING SYSTEM COMPRISING TWO SETS OF VERTICALLY SPACED SUPORT ARMS ROTATABLY MOUNTED ON A VERTICAL SHAFT. THE UPPER SET OF ARMS SUPPORT CONTAINERS FOR HOLDING FILE DATA IN A CANTILEVER FASHION WHILE THE LOWER SET OF ARMS SUPPORT THE CONTAINERS FROM UNDERNEATH. THE DIFFERENT PARTS OF THE SUPPORT STRUCTURE ARE CONSTRUCTED AS SEPARATE COMPACT ELEMENTS FOR ASSEMBLY AT THE SITE OF USE OF THE FILING SYSTEM. THE CONTAINERS FOR HOLDING THE FILE DATA HAVE A RHOMBOID SHAPE AND ARE ARRANGED AROUND THE SUPPORUT SHAFT IN SIDE-BY-SIDE RELATION.
Inventors
- 👤 Romeo T Proulx
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:12
CPC Classifications
A; A47; A47B; A47B49/00; A47B49/004; A47B63/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |