US186319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in door-retainers
Assignee: —
•
Filing: —
•
Granted: 1877-01-16
•
Expires: 1894-01-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:34
CPC Classifications
E; E05; E05C; E05C17/00; E05C17/02; E05C17/04; E05C17/36; E05C17/365; Y; Y10; Y10T; Y10T292/00; Y10T292/28; Y10T292/283; Y10T70/00; Y10T70/80; Y10T70/8432; Y10T70/8676; Y10T70/8703
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) | 1880-01-16 | 1880-07-17 | 1881-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1884-01-16 | 1884-07-17 | 1885-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1888-01-16 | 1888-07-17 | 1889-01-16 | $7700.00 | Window Closed / Lapsed |