US3401944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tape cartridge insert
Assignee: Automatic Radio Manufacturing Co Inc
•
Filing: 1967-02-17
•
Granted: 1968-09-17
•
Expires: 1987-02-17
Abstract
No abstract record available.
Inventors
- 👤 Metrick John S De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:39
CPC Classifications
G; G11; G11B; G11B23/00; G11B23/02; G11B23/04; G11B23/08; G11B23/06; G11B25/00; G11B25/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2135026A
Cited
US2778880A
Cited
US3243134A
Cited
US3217997A
Cited
US3289763A
Cited
US3210482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |