Patent US721322A successfully refreshed from Google Patents.
US721322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock.
Assignee: HENRY W SWEIGART
•
Filing: 1902-05-27
•
Granted: 1903-02-24
•
Expires: 1922-05-27
Abstract
No abstract record available.
Inventors
- 👤 Walter S Oberholtzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:42
CPC Classifications
E; E05; E05B; E05B55/00; Y; Y10; Y10S; Y10S70/00; Y10S70/80; Y10T; Y10T137/00; Y10T137/7069; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/55; Y10T70/5518; Y10T70/70; Y10T70/7441; Y10T70/778; Y10T70/7791; Y10T70/7842; Y10T70/7859; Y10T70/7915; Y10T70/7932; Y10T70/7944
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) | 1906-02-23 | 1906-08-25 | 1907-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1910-02-23 | 1910-08-25 | 1911-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1914-02-23 | 1914-08-25 | 1915-02-24 | $7700.00 | Window Closed / Lapsed |