US2490903A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window display conveyer apparatus
Assignee: Individual
•
Filing: 1945-09-20
•
Granted: 1949-12-13
•
Expires: 1965-09-20
Abstract
No abstract record available.
Inventors
- 👤 Leonard M Graves
- 👤 Elbert M Graves
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:31
CPC Classifications
A; A47; A47F; A47F3/00; A47F3/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB190125940A
Cited
US746717A
Cited
US1002911A
Cited
US1389887A
Cited
US1539351A
Cited
US1984948A
Cited
US2072502A
Cited
US2165727A
Cited
US2260528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-12 | 1953-06-13 | 1953-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-12 | 1957-06-13 | 1957-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-12 | 1961-06-13 | 1961-12-13 | $7700.00 | Window Closed / Lapsed |