US2928343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Check stamping machine
Assignee: Individual
•
Filing: 1956-03-07
•
Granted: 1960-03-15
•
Expires: 1976-03-07
Abstract
No abstract record available.
Inventors
- 👤 Henry A Mintz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:18
CPC Classifications
B; B41; B41K; B41K3/00; B41K3/02; B41K3/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US874790A
Cited
US896062A
Cited
US891150A
Cited
US1242454A
Cited
US1294012A
Cited
US1665099A
Cited
US1765859A
Cited
US1684934A
Cited
US1819158A
Cited
US1801197A
Cited
US1829004A
Cited
US1861208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |