Patent US3149261A successfully refreshed from Google Patents.
US3149261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal lamp to indicate printing lamp condition
Assignee: Individual
•
Filing: 1960-08-08
•
Granted: 1964-09-15
•
Expires: 1980-08-08
Abstract
No abstract record available.
Inventors
- 👤 Aizawa Tatsuo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:29
CPC Classifications
G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/54; G03B27/545; H; H05; H05B; H05B41/00; H05B41/14; H05B41/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A MACHINE FOR PRINTING ON SENSITIZED MATERIAL INCLUDING A CIRCUIT COMPRISING AN ELECTRICAL DISCHARGE LAMP THAT EMITS A PRINTING LIGHT WHEN AT LEAST A CRITICAL VOLTAGE IS APPLIED TO SAID LAMP; A FIRST RESISTOR AND A SECOND RESISTOR CONNECTED IN SERIES WITH EACH OTHER, THE COMBINATION OF SAID FIRST AND SECOND RESISTORS BEING CONNECTED IN PARALLEL WITH SAID LAMP; A GASEOUS GLOW TUBE CONNECTED IN PARALLEL WITH SAID FIRST RESISTOR, SAID TUBE GLOWING WHEN A FIRING VOLTAGE IS APPLIED THERETO; MEANS CONTINUOUSLY APPLYING TO SAID CIRCUIT A VOLTAGE THAT RISES TO SAID CRITICAL VOLTAGE, SAID MEANS BEING CONNECTED ACROSS SAID LAMP, THE CHARACTERISTICS OF SAID PRINTING LAMP, SAID RESISTORS, AND SAID GLOW TUBE BEING SO SELECTED AND PROPORTIONED THAT WHEN THE GLOW TUBE FIRES AND IS LIT, THE LAMP WILL BE EMITTING A PRINTING LIGHT.
Claim 2
Dependent Claim
135 words
A MACHINE FOR PRINTING ON SENSITIZED MATERIAL INCLUDING A CIRCUIT COMPRISING AN ELECTRICAL DISCHARGE LAMP THAT EMITS A PRINTING LIGHT WHEN AT LEAST A CRITICAL VOLTAGE IS APPLIED TO SAID LAMP; A FIRST RESISTOR AND A SECOND RESISTOR CONNECTED IN SERIES WITH EACH OTHER, THE COMBINATION OF SAID FIRST AND SECOND RESISTORS BEING CONNECTED IN PARALLEL WITH SAID LAMP; A GASEOUS GLOW TUBE CONNECTED IN PARALLEL WITH SAID FIRST RESISTOR, SAID TUBE GLOWING WHEN A FIRING VOLTAGE IS APPLIED THERETO; MEANS CONTINUOUSLY APPLYING TO SAID CIRCUIT A VOLTAGE THAT RISES TO SAID CRITICAL VOLTAGE, SAID MEANS BEING CONNECTED ACROSS SAID LAMP, THE CHARACTERISTICS OF SAID PRINTING LAMP, SAID RESISTORS, AND SAID GLOW TUBE BEING SO SELECTED AND PROPORTIONED THAT WHEN THE GLOW TUBE FIRES AND IS LIT, THE LAMP WILL BE EMITTING A PRINTING LIGHT.
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |