US3458154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape transport
Assignee: Dartex Inc
•
Filing: 1965-08-02
•
Granted: 1969-07-29
•
Expires: 1985-08-02
Abstract
No abstract record available.
Inventors
- 👤 Robert A Kleist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:31
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/28; G11B15/29
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2527145A
Cited
US2676212A
Cited
US2683568A
Cited
US2976372A
Cited
US3224008A
Cited
US3142429A
Cited
US3185364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |