USD280511S
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable computer
Assignee: AST Research Inc
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Filing: 1982-10-18
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Granted: 1985-09-10
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Expires: 2002-10-18
Abstract
No abstract record available.
Inventors
- 👤 William G. Moggridge
- 👤 David C. Paulsen
- 👤 Glenn T. Edens
- 👤 Stephen R. Hobson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:42
CPC Classifications
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Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
12 words
The ornamental design for a portable computer, substantially as shown and described.
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) | 1988-09-09 | 1989-03-11 | 1989-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-09 | 1993-03-11 | 1993-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-09 | 1997-03-11 | 1997-09-10 | $7700.00 | Window Closed / Lapsed |