Patent US2552745A successfully refreshed from Google Patents.
US2552745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable sign stake
Assignee: Individual
•
Filing: 1947-08-29
•
Granted: 1951-05-15
•
Expires: 1967-08-29
Abstract
No abstract record available.
Inventors
- 👤 Sr Nobe D Stanley
- 👤 Irvine M Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:28
CPC Classifications
G; G09; G09F; G09F7/00; G09F7/18; G09F7/20; G09F7/205
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) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |