Patent US2491469A successfully refreshed from Google Patents.
US2491469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planograph tracer guide
Assignee: Individual
•
Filing: 1945-05-11
•
Granted: 1949-12-20
•
Expires: 1965-05-11
Abstract
No abstract record available.
Inventors
- 👤 Andersen George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:20
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/002; B23K7/004
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2393474A
Cited
US1172933A
Cited
US1763793A
Cited
US1928015A
Cited
US1861758A
Cited
US2130373A
Cited
US2156847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-19 | 1953-06-20 | 1953-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-19 | 1957-06-20 | 1957-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-19 | 1961-06-20 | 1961-12-20 | $7700.00 | Window Closed / Lapsed |