US2485413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ladder
Assignee: Individual
•
Filing: 1945-03-06
•
Granted: 1949-10-18
•
Expires: 1965-03-06
Abstract
No abstract record available.
Inventors
- 👤 Allen R Ross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:45
CPC Classifications
B; B60; B60R; B60R3/00; B60R3/007; E; E06; E06C; E06C7/00; E06C7/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US283530A
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US416226A
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US799782A
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US910639A
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US1157739A
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US1438411A
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US1508392A
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US1590064A
Cited
US1576695A
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US2187633A
Cited
US2249304A
Cited
US2378678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-17 | 1953-04-18 | 1953-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-17 | 1957-04-18 | 1957-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-17 | 1961-04-18 | 1961-10-18 | $7700.00 | Window Closed / Lapsed |