Patent US2364932A successfully refreshed from Google Patents.
Patent US3395734A successfully refreshed from Google Patents.
US2474516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor umbrella
Assignee: Troy Sunshade Co
•
Filing: 1945-02-26
•
Granted: 1949-06-28
•
Expires: 1965-02-26
Abstract
No abstract record available.
Inventors
- 👤 Daniel Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:39
CPC Classifications
A; A45; A45B; A45B25/00; A45B25/06; A45B23/00; A45B2023/0012
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US40558A
Cited
US334368A
Cited
US362888A
Cited
US704128A
Cited
US743476A
Cited
US1590867A
Cited
US1592723A
Cited
US2101510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |