Patent US1254348A successfully refreshed from Google Patents.
US1254348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Charge-forming device for explosion-motors.
Assignee: Standard Parts Co
•
Filing: 1914-04-28
•
Granted: 1918-01-22
•
Expires: 1934-04-28
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:58
CPC Classifications
F; F02; F02M; F02M15/00; F02M15/02; F02M15/04; A; A61; A61M; A61M16/00; A61M16/10; A61M16/14; A61M16/16
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1921-01-21 | 1921-07-23 | 1922-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-01-21 | 1925-07-23 | 1926-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-01-21 | 1929-07-23 | 1930-01-22 | $7700.00 | Window Closed / Lapsed |