US3235783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectifier device for railway signaling systems
Assignee: Individual
•
Filing: 1961-10-02
•
Granted: 1966-02-15
•
Expires: 1981-10-02
Abstract
No abstract record available.
Inventors
- 👤 Carl G Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:08
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/40; Y; Y10; Y10S; Y10S257/00; Y10S257/909
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
IN A RAILWAY SIGNALING SYSTEM, THE COMBINATION COMPRISING: A TRANSFORMER ASSEMBLY ADAPTED TO BE MOUNTED IN A STATIONARY POSITION AND HAVING A READILY ACCESSIBLE FRONT FACE FORMING SUBSTANTIALLY A LIMIT FOR SAID TRANSFORMER ASSEMBLY; A RECTIFIER ASSEMBLY; AND MEANS ACTING BETWEEN SAID RECTIFIER ASSEMBLY AND SAID TRANSFORMER ASSEMBLY MECHANICALLY AND RELEASABLY TO MOUNT SAID RECTIFIER ASSEMBLY AT AND FORWARDLY OF SAID FACE AND ELECTRICALLY TO CONTACT SAID RECTIFIER ASSEMBLY IN CIRCUIT BETWEEN SAID TRANSFORMER ASSEMBLY AND AN OUTPUT LINE, SAID LAST MENTIONED MEANS INCLUDING FIRST MOUNTING MEANS OF ELECTRICALLY CONDUCTIVE MATERIAL RIGID WITH AND ELECTRICALLY CONNECTED TO ONE TERMINAL OF SAID RECTIFIER ASSEMBLY AND SECOND MOUNTING MEANS OF ELECTICALLLY CONDUCTIVE MATERIAL PHYSICALLY SECURED AND ELEC-
Claim 2
Dependent Claim
115 words
IN A RAILWAY SIGNALING SYSTEM, THE COMBINATION COMPRISING: A TRANSFORMER ASSEMBLY ADAPTED TO BE MOUNTED IN A STATIONARY POSITION AND HAVING A READILY ACCESSIBLE FRONT FACE FORMING SUBSTANTIALLY A LIMIT FOR SAID TRANSFORMER ASSEMBLY; A RECTIFIER ASSEMBLY; AND MEANS ACTING BETWEEN SAID RECTIFIER ASSEMBLY AND SAID TRANSFORMER ASSEMBLY MECHANICALLY AND RELEASABLY TO MOUNT SAID RECTIFIER ASSEMBLY AT AND FORWARDLY OF SAID FACE AND ELECTRICALLY TO CONTACT SAID RECTIFIER ASSEMBLY IN CIRCUIT BETWEEN SAID TRANSFORMER ASSEMBLY AND AN OUTPUT LINE, SAID LAST MENTIONED MEANS INCLUDING FIRST MOUNTING MEANS OF ELECTRICALLY CONDUCTIVE MATERIAL RIGID WITH AND ELECTRICALLY CONNECTED TO ONE TERMINAL OF SAID RECTIFIER ASSEMBLY AND SECOND MOUNTING MEANS OF ELECTICALLLY CONDUCTIVE MATERIAL PHYSICALLY SECURED AND ELEC-
References Cited (Backward Citations)
US2944197A
Cited
US2921243A
Cited
US2974263A
Cited
US3054933A
Cited
US3064179A
Cited
US3040232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |