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US2423803A
Expired / Lapsed
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High lift device
Assignee: Individual
•
Filing: 1943-12-08
•
Granted: 1947-07-08
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Expires: 1963-12-08
Abstract
No abstract record available.
Inventors
- 👤 Edward A Stalker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:58
CPC Classifications
B; B64; B64C; B64C3/00; B64C3/38; B64C3/44; B64C3/50; Y; Y02; Y02T; Y02T50/00; Y02T50/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1433030A
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US1540105A
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GB209435A
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US1567531A
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GB222845A
Cited
US1720667A
Cited
US1752378A
Cited
FR705155A
Cited
US1856219A
Cited
US2142123A
Cited
GB525666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-07 | 1951-01-06 | 1951-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-07 | 1955-01-06 | 1955-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-07 | 1959-01-06 | 1959-07-08 | $7700.00 | Window Closed / Lapsed |