US2452089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal work head
Assignee: Rockwell Manufacturing Co
•
Filing: 1944-06-15
•
Granted: 1948-10-26
•
Expires: 1964-06-15
Abstract
No abstract record available.
Inventors
- 👤 Christy A Wiken
- 👤 Eric A Reibig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:01
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/50; B23Q1/54; B23Q1/5406; B23Q1/5412; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5152; Y10T29/5165; Y10T29/5167
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1404243A
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US2059753A
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US2144486A
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US2205361A
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US2277997A
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US2351246A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-26 | 1952-04-26 | 1952-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-26 | 1956-04-26 | 1956-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-26 | 1960-04-26 | 1960-10-26 | $7700.00 | Window Closed / Lapsed |