US241468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring-hinge
Assignee: —
•
Filing: —
•
Granted: 1881-05-10
•
Expires: 1898-05-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:50
CPC Classifications
E; E05; E05D; E05D13/00; E05D13/10; E05D13/12; E05Y; E05Y2900/00; E05Y2900/50; E05Y2900/53; E05Y2900/548
Claims Analysis
Total Claims: 0
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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) | 1884-05-09 | 1884-11-08 | 1885-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1888-05-09 | 1888-11-08 | 1889-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1892-05-09 | 1892-11-08 | 1893-05-10 | $7700.00 | Window Closed / Lapsed |