US2673518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand chess stamp
Assignee: Individual
•
Filing: 1951-05-29
•
Granted: 1954-03-30
•
Expires: 1971-05-29
Abstract
No abstract record available.
Inventors
- 👤 Louis J Ardizzone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:39
CPC Classifications
B; B41; B41K; B41K1/00; B41K1/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US508865A
Cited
US830188A
Cited
US902582A
Cited
US1001689A
Cited
US1221815A
Cited
US1854215A
Cited
AT140721B
Cited
US2038338A
Cited
US2620731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |