US3548381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data handling systems
Assignee: Dirks Electronics Corp
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Filing: 1967-08-03
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Granted: 1970-12-15
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Expires: 1987-08-03
Abstract
No abstract record available.
Inventors
- 👤 Gerhard Dirks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:25
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/491; G06F7/22; G06F7/36; G06Q; G06Q40/00; G06Q40/02; G11; G11B; G11B15/00; G11B15/005; G11B17/00; G11B17/02; G11B17/022; G11B17/32; G11B19/00; G11B19/20; G11B19/22; G11B21/00; G11B21/02; G11B23/00; G11B23/02; G11B23/03; G11B23/032; G11B23/0321; G11B27/00; G11B5/00; G11B5/008; G11B5/012; G11B5/016; G11B5/48; G11B5/52; G11B5/53; G11B5/531; G11B5/535; G11B5/537; G11B5/58; G11B5/74; G11B5/82; G11B5/825
Claims Analysis
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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) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |