US2425249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article-controlled marking means
Assignee: Individual
•
Filing: 1943-08-02
•
Granted: 1947-08-05
•
Expires: 1963-08-02
Abstract
No abstract record available.
Inventors
- 👤 Lacy-Hulbert Denis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:40
CPC Classifications
B; B41; B41F; B41F17/00; B41F17/08; B41F17/14; B41F17/16; Y; Y10; Y10S; Y10S101/00; Y10S101/30
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US240773A
Cited
US391228A
Cited
US448219A
Cited
US152333A
Cited
US774761A
Cited
US915278A
Cited
US1290509A
Cited
US1214632A
Cited
US1496331A
Cited
US1803323A
Cited
US1845726A
Cited
US1796224A
Cited
US2006204A
Cited
US2172318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-04 | 1951-02-03 | 1951-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-04 | 1955-02-03 | 1955-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-04 | 1959-02-03 | 1959-08-05 | $7700.00 | Window Closed / Lapsed |