US3241210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refractory block molding machine
Assignee: Basic Inc
•
Filing: 1963-04-03
•
Granted: 1966-03-22
•
Expires: 1983-04-03
Abstract
No abstract record available.
Inventors
- 👤 Robert F Shurtz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:33
CPC Classifications
B; B28; B28B; B28B7/00; B28B7/0029; B28B7/0035; B28B7/0041; B28B1/00; B28B1/08; B28B1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A REFRACTORY BLOCK MOLDING MACHINE COMPRISING A BOTTOM PATTERN HAVING SHOULDERS ON OPPOSITE SIDES THEREOF, A MOLD BOX INCLUDING INCLINED WALLS SEATED ON SAID SHOULDERS AND PARALLEL VERTICAL WALLS EXTENDING BETWEEN SAID INCLINED WALLS FORMING WITH SAID BOTTOM PATTERN AN OPEN TOP MOLD BOX, MEANS TO COMPACT A REFRACTORY MATERIAL THEREIN, MEANS TO EXPAND SAID BOX WITHOUT DISASSEMBLING THE SAME, AND MEANS VERTICALLY TO MOVE SAID PATTERN THERETHROUGH WHEN THUS EXPANDED, SAID MEANS TO
Claim 2
Dependent Claim
74 words
A REFRACTORY BLOCK MOLDING MACHINE COMPRISING A BOTTOM PATTERN HAVING SHOULDERS ON OPPOSITE SIDES THEREOF, A MOLD BOX INCLUDING INCLINED WALLS SEATED ON SAID SHOULDERS AND PARALLEL VERTICAL WALLS EXTENDING BETWEEN SAID INCLINED WALLS FORMING WITH SAID BOTTOM PATTERN AN OPEN TOP MOLD BOX, MEANS TO COMPACT A REFRACTORY MATERIAL THEREIN, MEANS TO EXPAND SAID BOX WITHOUT DISASSEMBLING THE SAME, AND MEANS VERTICALLY TO MOVE SAID PATTERN THERETHROUGH WHEN THUS EXPANDED, SAID MEANS TO
References Cited (Backward Citations)
US374938A
Cited
US797758A
Cited
US810300A
Cited
US826290A
Cited
US856866A
Cited
US896330A
Cited
US1181198A
Cited
US1431565A
Cited
FR532107A
Cited
US1486056A
Cited
US1603917A
Cited
US1767163A
Cited
CH183948A
Cited
US2407168A
Cited
US2446061A
Cited
FR1095530A
Cited
US2836873A
Cited
US2887722A
Cited
DE1045303B
Cited
US2916795A
Cited
FR1234078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |