US2605769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Appliance for the upright filing of index cards
Assignee: Individual
•
Filing: 1947-08-04
•
Granted: 1952-08-05
•
Expires: 1967-08-04
Abstract
No abstract record available.
Inventors
- 👤 Lampel Bela
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:06
CPC Classifications
B; B42; B42F; B42F21/00; B42F21/06; B42F21/065
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1053670A
Cited
DE663926C
Cited
US1217243A
Cited
US1419394A
Cited
US1684807A
Cited
US1598257A
Cited
US1745651A
Cited
US1800404A
Cited
DE559432C
Cited
US1975662A
Cited
FR785787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |