US2854615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit arrangement for providing a d. c. output
Assignee: US Philips Corp
•
Filing: 1956-01-16
•
Granted: 1958-09-30
•
Expires: 1976-01-16
Abstract
No abstract record available.
Inventors
- 👤 Light Leon Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:22
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/338; H02M3/3385
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2730576A
Cited
US2757243A
Cited
US2764688A
Cited
US2751545A
Cited
US2759142A
Cited
US2791739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |