Patent US1942210A successfully refreshed from Google Patents.
US1942210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal folding ladder
Assignee: Individual
•
Filing: 1932-07-28
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Granted: 1934-01-02
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Expires: 1952-07-28
Abstract
No abstract record available.
Inventors
- 👤 Harting Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:50
CPC Classifications
E; E06; E06C; E06C1/00; E06C1/02; E06C1/38; E06C1/39; E06C1/32; Y; Y10; Y10T; Y10T403/00; Y10T403/33; Y10T403/34; Y10T403/341; Y10T403/345; Y10T403/70; Y10T403/7075; Y10T403/7077; Y10T403/7079; Y10T403/7084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-01-01 | 1937-07-03 | 1938-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-01-01 | 1941-07-03 | 1942-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-01-01 | 1945-07-03 | 1946-01-02 | $7700.00 | Window Closed / Lapsed |