Patent US2378664A successfully refreshed from Google Patents.
Patent US2987795A successfully refreshed from Google Patents.
US2987795A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for manufacturing building blocks
Assignee: Individual
•
Filing: 1955-08-11
•
Granted: 1961-06-13
•
Expires: 1975-08-11
Abstract
No abstract record available.
Inventors
- 👤 Adams Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:05
CPC Classifications
B; B28; B28B; B28B1/00; B28B1/04; B28B23/00; B28B23/02; B28B23/028
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US940935A
Cited
US1468065A
Cited
US1706647A
Cited
US2583597A
Cited
US2533479A
Cited
US2532049A
Cited
US2583104A
Cited
US2492415A
Cited
US2614308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |