US2601962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft balancing means
Assignee: Douglas Aircraft Co Inc
•
Filing: 1946-01-29
•
Granted: 1952-07-01
•
Expires: 1966-01-29
Abstract
No abstract record available.
Inventors
- 👤 Donald W Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:39
CPC Classifications
B; B64; B64C; B64C5/00; B64C5/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |