Patent US2008364A successfully refreshed from Google Patents.
US3249703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Switching converter power supplies with series-connected inputs
Assignee: AT&T Inc
•
Filing: 1963-02-25
•
Granted: 1966-05-03
•
Expires: 1983-02-25
Abstract
No abstract record available.
Inventors
- 👤 Richard M Rickert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:06
CPC Classifications
H; H04; H04B; H04B3/00; H04B3/02; H04B3/44
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
89 words
A SYSTEM FOR SUPPLYING POWER TO A PLURALITY OF LOADS, COMPRISING A SOURCE OF DIRECT CURRENT, A PLURALITY OF SWITCHES CONNECTED IN SERIES ACROSS SAID SOURCE, REACTIVE STORAGE CIRCUITS HAVING INPUTS CONNECTED ACROSS SAID SWITCHES AND OUTPUTS CONNECTED ACROSS SAID LOADS FOR COUPLING POWER FROM SAID SOURCE TO SAID LOADS, AND MEANS FOR FEEDING BACK SIGNALS FROM SAID OUTPUTS TO SAID SWITCHES TO OPEN AND CLOSE SAID SWITCHES IN RESPONSE TO A PARAMETER OF THE POWER DELIVERED TO SAID LOADS TO HOLD THE AVERAGE VOLTAGE ACROSS SAID INPUTS CONSTANT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |