US3441833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulated power supply having current comparator referenced to common conductor
Assignee: HP Inc
•
Filing: 1958-05-26
•
Granted: 1969-04-29
•
Expires: 1978-05-26
Abstract
No abstract record available.
Inventors
- 👤 George S Bahrs
- 👤 Malcolm M Mcwhorter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:39
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/56; G05F1/565; G05F1/569; G05F1/573
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2693568A
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US2698416A
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US2840777A
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US2904742A
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US2915693A
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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) | 1972-04-28 | 1972-10-28 | 1973-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-28 | 1976-10-28 | 1977-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-28 | 1980-10-28 | 1981-04-29 | $7700.00 | Window Closed / Lapsed |