US2448862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cargo-carrying airplane
Assignee: Individual
•
Filing: 1944-03-13
•
Granted: 1948-09-07
•
Expires: 1964-03-13
Abstract
No abstract record available.
Inventors
- 👤 Ray B Conklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:03
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/22; B64C39/00; B64C39/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2075042A
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US2215003A
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US2294003A
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US2352323A
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US2376478A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |