US2610423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display sign structure
Assignee: Individual
•
Filing: 1948-02-13
•
Granted: 1952-09-16
•
Expires: 1968-02-13
Abstract
No abstract record available.
Inventors
- 👤 William A Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:47
CPC Classifications
G; G09; G09F; G09F7/00; G09F7/02; G09F7/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US826904A
Cited
US1159465A
Cited
FR607409A
Cited
US1975247A
Cited
US2284626A
Cited
US2270711A
Cited
US2264243A
Cited
US2446323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |