US2889128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sign supporting bracket
Assignee: Individual
•
Filing: 1955-12-28
•
Granted: 1959-06-02
•
Expires: 1975-12-28
Abstract
No abstract record available.
Inventors
- 👤 Andrew S Martin
- 👤 James E Mccleary
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:27
CPC Classifications
E; E01; E01F; E01F9/00; E01F9/60; E01F9/623; E01F9/65
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1107488A
Cited
US1151920A
Cited
US1218531A
Cited
US1945575A
Cited
US1824368A
Cited
US2334320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |