Patent US539896A successfully refreshed from Google Patents.
Patent US802099A successfully refreshed from Google Patents.
Patent US4014726A successfully refreshed from Google Patents.
Patent US3071691A successfully refreshed from Google Patents.
Patent US306537A successfully refreshed from Google Patents.
US306537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for making staples
Assignee: —
•
Filing: —
•
Granted: 1884-10-14
•
Expires: 1901-10-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:14
CPC Classifications
B; B21; B21F; B21F45/00; B21F45/16; B21F45/24
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) | 1887-10-14 | 1888-04-14 | 1888-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1891-10-14 | 1892-04-14 | 1892-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1895-10-14 | 1896-04-14 | 1896-10-14 | $7700.00 | Window Closed / Lapsed |