US3379388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reel hold down knob
Assignee: Texas Instruments Inc
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Filing: 1966-12-30
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Granted: 1968-04-23
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Expires: 1986-12-30
Abstract
No abstract record available.
Inventors
- 👤 Norman P Gruczelak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:41
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/60; G11B15/66; G11B15/662; B; B65; B65H; B65H18/00; B65H18/02; B65H18/04; G11B15/18; G11B15/26; G11B15/30; B65H2405/00; B65H2405/40; B65H2405/45
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |