US2416689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propulsion mechanism
Assignee: Individual
•
Filing: 1944-09-27
•
Granted: 1947-03-04
•
Expires: 1964-09-27
Abstract
No abstract record available.
Inventors
- 👤 Thomas M Grady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:29
CPC Classifications
B; B64; B64D; B64D35/00; B64D35/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1481024A
Cited
FR528397A
Cited
US1779644A
Cited
US1858911A
Cited
US1800094A
Cited
US1879142A
Cited
US2166896A
Cited
US2234120A
Cited
US2192469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-03 | 1950-09-02 | 1951-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-03 | 1954-09-02 | 1955-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-03 | 1958-09-02 | 1959-03-04 | $7700.00 | Window Closed / Lapsed |