US3052067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic counterbalance and lift for slab grinder
Assignee: Lukens Steel Co
•
Filing: 1960-09-09
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Granted: 1962-09-04
•
Expires: 1980-09-09
Abstract
No abstract record available.
Inventors
- 👤 John H Dilks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:35
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/001; B23Q11/0017; B23Q11/0021; B23Q5/00; B23Q5/22; B23Q5/26; B24; B24B; B24B41/00; B24B41/007; B24B7/00; B24B7/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US932603A
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US1052844A
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US2197729A
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US2171519A
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US2364879A
Cited
GB567899A
Cited
US2442042A
Cited
US2769280A
Cited
US2955388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |