Patent US2889491A successfully refreshed from Google Patents.
US2889491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape storage bin
Assignee: Unisys Corp
•
Filing: 1954-10-22
•
Granted: 1959-06-02
•
Expires: 1974-10-22
Abstract
No abstract record available.
Inventors
- 👤 Duncan N Macdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:32
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/06; G06; G06K; G06K1/00; G06K1/02; G06K1/06; G06K1/10; G11B25/00; G11B25/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1056507A
Cited
US1206357A
Cited
US1162419A
Cited
US1530704A
Cited
US1744004A
Cited
US2259517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |