US4449182B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
US4449182B1 - - Google Patents
Assignee: Hewlett Packard Development Co LP
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Filing: 1981-10-05
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Granted: 1989-12-12
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Expires: 2001-10-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:39
CPC Classifications
G; G06; G06F; G06F9/00; G06F9/06; G06F9/44; G06F9/4401; G06F9/4405; G06F13/00; G06F13/10; G06F13/12; G06F13/124; G06F13/126; G06F15/00; G06F15/16; G06F15/163; G06F15/173; G06F15/17356; G06F15/177
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-11 | 1993-06-12 | 1993-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-11 | 1997-06-12 | 1997-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-11 | 2001-06-12 | 2001-12-12 | $7700.00 | Window Closed / Lapsed |