US1437494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powee hack
Assignee: —
•
Filing: —
•
Granted: 1922-12-05
•
Expires: 1939-12-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:34
CPC Classifications
B; B23; B23D; B23D59/00; B23D59/04; B23D49/00; B23D49/04; B23D51/00; B23D51/16; B23D51/20; Y; Y10; Y10T; Y10T83/00; Y10T83/263; Y10T83/869; Y10T83/8737; Y10T83/8874; Y10T83/8876
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) | 1925-12-04 | 1926-06-05 | 1926-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1929-12-04 | 1930-06-05 | 1930-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1933-12-04 | 1934-06-05 | 1934-12-05 | $7700.00 | Window Closed / Lapsed |