US2818988A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Masonry block cart
Assignee: Individual
•
Filing: 1954-12-17
•
Granted: 1958-01-07
•
Expires: 1974-12-17
Abstract
No abstract record available.
Inventors
- 👤 Richard W Dunkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:13
CPC Classifications
B; B62; B62B; B62B3/00; B62B3/12; B62B2202/00; B62B2202/62
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US310485A
Cited
US1316239A
Cited
US1460266A
Cited
US1542327A
Cited
US1725095A
Cited
US1835431A
Cited
US1921661A
Cited
US2373279A
Cited
GB630551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-01-06 | 1961-07-08 | 1962-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-06 | 1965-07-08 | 1966-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-06 | 1969-07-08 | 1970-01-07 | $7700.00 | Window Closed / Lapsed |