Patent US2597157A successfully refreshed from Google Patents.
US2597157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable knockdown article supporting device
Assignee: ALBERT B F MARTINO
•
Filing: 1950-03-31
•
Granted: 1952-05-20
•
Expires: 1970-03-31
Abstract
No abstract record available.
Inventors
- 👤 William C Martino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:59
CPC Classifications
A; A47; A47G; A47G25/00; A47G25/02; A47G25/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1955-05-20 | 1955-11-19 | 1956-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-20 | 1959-11-19 | 1960-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-20 | 1963-11-19 | 1964-05-20 | $7700.00 | Window Closed / Lapsed |