Patent US2520746A successfully refreshed from Google Patents.
US2520746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ash tray
Assignee: Individual
•
Filing: 1946-09-17
•
Granted: 1950-08-29
•
Expires: 1966-09-17
Abstract
No abstract record available.
Inventors
- 👤 Uman Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:39
CPC Classifications
A; A24; A24F; A24F19/00; A24F19/10; A24F19/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE27651C
Cited
US348471A
Cited
US680359A
Cited
US980123A
Cited
US1045176A
Cited
US1744123A
Cited
US1776563A
Cited
US1658885A
Cited
US2259793A
Cited
US2319861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |