US3227952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for controlling a process representable by electrical oscillations and including digital conversion means
Assignee: International Business Machines Corp
•
Filing: 1960-12-22
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Granted: 1966-01-04
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Expires: 1980-12-22
Abstract
No abstract record available.
Inventors
- 👤 Walter E Proebster
- 👤 Kohler Kurt
- 👤 Dietrich Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:35
CPC Classifications
G; G01; G01R; G01R23/00; G01R23/02; G01R23/10; C; C23; C23C; C23C14/00; C23C14/22; C23C14/54; C23C14/542; C23C14/545; C23C14/546; G05; G05B; G05B1/00; G05B1/01; G05B1/04; G05B1/08; G05D; G05D5/00; G05D5/02; G05D5/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2414479A
Cited
US2411298A
Cited
US2768629A
Cited
US2880612A
Cited
US2902765A
Cited
US3006547A
Cited
US2991416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |