Patent US1426047A successfully refreshed from Google Patents.
US1426047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airship
Assignee: Individual
•
Filing: 1919-02-13
•
Granted: 1922-08-15
•
Expires: 1939-02-13
Abstract
No abstract record available.
Inventors
- 👤 Cooke Charles John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:44
CPC Classifications
B; B64; B64B; B64B1/00; B64B1/58; B64B1/60; Y; Y10; Y10S; Y10S55/00; Y10S55/30
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) | 1925-08-14 | 1926-02-13 | 1926-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-08-14 | 1930-02-13 | 1930-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-08-14 | 1934-02-13 | 1934-08-15 | $7700.00 | Window Closed / Lapsed |