Patent US2428934A successfully refreshed from Google Patents.
US2428934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airplane having adjustable wings and wing adjusting means
Assignee: Individual
•
Filing: 1941-10-13
•
Granted: 1947-10-14
•
Expires: 1961-10-13
Abstract
No abstract record available.
Inventors
- 👤 Raymond G Gille
- 👤 Harold K Bourquin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:41
CPC Classifications
B; B64; B64C; B64C3/00; B64C3/38; B64C3/40; Y; Y02; Y02T; Y02T50/00; Y02T50/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB190930344A
Cited
US1009770A
Cited
US1018413A
Cited
US1025063A
Cited
US1290841A
Cited
US1674177A
Cited
US1750778A
Cited
US1740016A
Cited
US1879618A
Cited
US2026728A
Cited
US2071513A
Cited
GB484622A
Cited
GB526162A
Cited
US2272664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-13 | 1951-04-14 | 1951-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-13 | 1955-04-14 | 1955-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-13 | 1959-04-14 | 1959-10-14 | $7700.00 | Window Closed / Lapsed |