Patent US3287614A successfully refreshed from Google Patents.
US3287614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable, self-powered, corona charging apparatus
Assignee: RCA Corp
•
Filing: 1963-05-27
•
Granted: 1966-11-22
•
Expires: 1983-05-27
Abstract
No abstract record available.
Inventors
- 👤 Milton M Sowiak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:02
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/02; G03G15/0283; G03G15/0291; H; H01; H01T; H01T19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A BATTERY-POWERED CORONA CHARGING APPARATUS COMPRISING: ELONGATED ELECTRODE MEANS; BATTERY-POWERED CIRCUIT MEANS FOR PRODUCING PULSES OF AN AMPLITUDE OF AT LEAST 5 KILOVOLTS AND OF A FREQUENCY OF AT LEAST ONE KILOCYCLE; MEANS FOR APPLYING SAID PULSES TO SAID ELECTRODE MEANS.
Claim 2
Dependent Claim
41 words
A BATTERY-POWERED CORONA CHARGING APPARATUS COMPRISING: ELONGATED ELECTRODE MEANS; BATTERY-POWERED CIRCUIT MEANS FOR PRODUCING PULSES OF AN AMPLITUDE OF AT LEAST 5 KILOVOLTS AND OF A FREQUENCY OF AT LEAST ONE KILOCYCLE; MEANS FOR APPLYING SAID PULSES TO SAID ELECTRODE MEANS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |