US2856464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape transport apparatus
Assignee: Unisys Corp
•
Filing: 1956-05-14
•
Granted: 1958-10-14
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Expires: 1976-05-14
Abstract
No abstract record available.
Inventors
- 👤 Groom Robert George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:21
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/28; G11B15/29; G11B15/02; G11B15/16; G11B15/22; G11B15/44; G11B15/444; G11B15/675; G11B15/68; G11B15/6895
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2069595A
Cited
US2778634A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |