US3073050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for keeping index cards
Assignee: Individual
•
Filing: 1960-09-09
•
Granted: 1963-01-15
•
Expires: 1980-09-09
Abstract
No abstract record available.
Inventors
- 👤 Dubois Sven-Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:52
CPC Classifications
B; B42; B42F; B42F9/00; Y; Y10; Y10S; Y10S24/00; Y10S24/08; Y10S24/09; Y10T; Y10T24/00; Y10T24/20; Y10T24/202; Y10T24/205
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |