Patent US5547675A successfully refreshed from Google Patents.
Patent US3303846A successfully refreshed from Google Patents.
US826601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for scoring can-tops.
Assignee: KEYLESS CAN OPENER Co
•
Filing: 1905-07-06
•
Granted: 1906-07-24
•
Expires: 1925-07-06
Abstract
No abstract record available.
Inventors
- 👤 Frank C B Page
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:31
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/38; B21D51/383
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) | 1909-07-23 | 1910-01-22 | 1910-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-07-23 | 1914-01-22 | 1914-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-07-23 | 1918-01-22 | 1918-07-24 | $7700.00 | Window Closed / Lapsed |