US1678640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fitting for aircraft and the like
Assignee: Individual
•
Filing: 1924-07-02
•
Granted: 1928-07-31
•
Expires: 1944-07-02
Abstract
No abstract record available.
Inventors
- 👤 Hall Charles Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:08
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/06; B64C2001/0054; B64C2001/0081; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49909; Y10T29/49913; Y10T29/49925; Y10T29/49927; Y10T403/00; Y10T403/49; Y10T403/4933; Y10T403/4983; Y10T403/4991
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1931-07-31 | 1932-01-30 | 1932-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-07-31 | 1936-01-30 | 1936-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-07-31 | 1940-01-30 | 1940-07-31 | $7700.00 | Window Closed / Lapsed |