US726411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door-equalizer.
Assignee: Individual
•
Filing: 1902-09-26
•
Granted: 1903-04-28
•
Expires: 1922-09-26
Abstract
No abstract record available.
Inventors
- 👤 Victor P De Knight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:07
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/56; E05D15/58; E05D15/582; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
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) | 1906-04-27 | 1906-10-27 | 1907-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-04-27 | 1910-10-27 | 1911-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-04-27 | 1914-10-27 | 1915-04-28 | $7700.00 | Window Closed / Lapsed |