US2415975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cargo carrier plane and system
Assignee: Individual
•
Filing: 1943-08-07
•
Granted: 1947-02-18
•
Expires: 1963-08-07
Abstract
No abstract record available.
Inventors
- 👤 Robert M Thomson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:07
CPC Classifications
B; B64; B64C; B64C39/00; B64C39/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB167068A
Cited
US1625700A
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US1860076A
Cited
US1825301A
Cited
DE527663C
Cited
US1882338A
Cited
US2075042A
Cited
US2095440A
Cited
US2268009A
Cited
US2323279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-17 | 1950-08-19 | 1951-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-17 | 1954-08-19 | 1955-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-17 | 1958-08-19 | 1959-02-18 | $7700.00 | Window Closed / Lapsed |