Patent US4923022B1 successfully refreshed from Google Patents.
US4923022B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic mailing apparatus
Assignee: Individual
•
Filing: 1989-04-25
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Granted: 1994-04-12
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Expires: 2009-04-25
Abstract
No abstract record available.
Inventors
- 👤 Tzu-Yen Hsieh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:58
CPC Classifications
G; G07; G07F; G07F17/00; G07F17/26; G01; G01G; G01G19/00; G01G19/002; G01G19/005; G07B; G07B17/00; G07B17/00185; G07B17/00193; G07B17/00459; G07B17/00467; G07B2017/00225; G07B2017/00475; Y; Y10; Y10S; Y10S209/00; Y10S209/90
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) | 1997-04-11 | 1997-10-11 | 1998-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-04-11 | 2001-10-11 | 2002-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-04-11 | 2005-10-11 | 2006-04-12 | $7700.00 | Window Closed / Lapsed |