Patent US2594343A successfully refreshed from Google Patents.
Patent US3071481A successfully refreshed from Google Patents.
Patent US2612276A successfully refreshed from Google Patents.
US2612276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unloading mechanism for concrete block molding machines
Assignee: Individual
•
Filing: 1947-08-05
•
Granted: 1952-09-30
•
Expires: 1967-08-05
Abstract
No abstract record available.
Inventors
- 👤 Carl W Claytor
- 👤 John W Hendricks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:16
CPC Classifications
B; B28; B28B; B28B13/00; B28B13/04; B28B13/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2054253A
Cited
US2069880A
Cited
US2193879A
Cited
US2231064A
Cited
US2303884A
Cited
US2396999A
Cited
US2389673A
Cited
US2529066A
Cited
US2528931A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-30 | 1956-03-31 | 1956-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-30 | 1960-03-31 | 1960-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-30 | 1964-03-31 | 1964-09-30 | $7700.00 | Window Closed / Lapsed |