US2988057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotating cylinder positioning mechanism
Assignee: International Business Machines Corp
•
Filing: 1958-02-06
•
Granted: 1961-06-13
•
Expires: 1978-02-06
Abstract
No abstract record available.
Inventors
- 👤 Frank A Litz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:44
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/08; F15B15/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US657113A
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FR1010584A
Cited
DE917585C
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US2870748A
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US2915044A
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US2811141A
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US2825307A
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US2902009A
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US2911956A
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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) | 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 |