US2670515A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concrete product machine
Assignee: Individual
•
Filing: 1951-08-15
•
Granted: 1954-03-02
•
Expires: 1971-08-15
Abstract
No abstract record available.
Inventors
- 👤 Tom M Wigley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:12
CPC Classifications
B; B28; B28B; B28B5/00; B28B5/02; B28B5/021; B30; B30B; B30B5/00; B30B5/04; B30B5/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US529535A
Cited
US707921A
Cited
US737054A
Cited
US1453746A
Cited
US1465326A
Cited
US1862318A
Cited
US1945003A
Cited
US2176945A
Cited
US2154201A
Cited
US2441235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |