Patent US4572253B1 successfully refreshed from Google Patents.
US4572253B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
US4572253B1 - - Google Patents
Assignee: Lancer Partnership Ltd
•
Filing: 1984-07-19
•
Granted: 1987-07-07
•
Expires: 2004-07-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:45
CPC Classifications
B; B67; B67D; B67D1/00; B67D1/08; B67D1/12; B67D1/1202; B67D1/1234; B67D1/1238; Y; Y10; Y10S; Y10S367/00; Y10S367/908
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1990-07-06 | 1991-01-05 | 1991-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-06 | 1995-01-05 | 1995-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-06 | 1999-01-05 | 1999-07-07 | $7700.00 | Window Closed / Lapsed |