US3502284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape cartridge
Assignee: BASF SE
•
Filing: 1967-07-10
•
Granted: 1970-03-24
•
Expires: 1987-07-10
Abstract
No abstract record available.
Inventors
- 👤 Gustav Loewenberg
- 👤 Adolf Diebold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:49
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/087; G11B23/08707; G11B23/08757; G11B23/08764; Y; Y10; Y10S; Y10S242/00; Y10S242/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734007A
Cited
US2889491A
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US3094436A
Cited
US3027110A
Cited
US3059870A
Cited
US3062464A
Cited
US3137806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |