Patent US3421049A successfully refreshed from Google Patents.
US3421049A
Expired / Lapsed
US
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Sequencing device for displaying lighting
Assignee: LLOYD B LOGAN
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Filing: 1965-12-06
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Granted: 1969-01-07
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Expires: 1985-12-06
Abstract
No abstract record available.
Inventors
- 👤 Lloyd B Logan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:17
CPC Classifications
H; H01; H01H; H01H43/00; H01H43/10; H01H43/12; H01H43/125; G; G09; G09F; G09F13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A SEQUENCING DEVICE FOR A PLURALITY OF ELECTRIC LIGHT CIRCUITS COMPRISING A RESISTANCE VARYING DEVICE, A PLURALITY OF NORMALLY OPEN DOUBLE THROW SWITCHES, EACH OF SAID SWITCHES HAVING A FIRST CONTACT CONNECTED DIRECT TO ONE A SAID CIRCUITS AND A SECOND CONTACT CONNECTED TO THE CORRESPONDING CIRCUIT THROUGH SAID RESISTACE VARYING DEVICE, AND MEANS FOR SEQUENTIALLY ACTUATING SAID SWITCHES BETWEEN THEIR NORMALLY OPEN POSITION AND SAID FIRST AND SECOND CONTACTS, AND ADDTIONAL MEANS FOR ACTUATING SAID RESISTANCE VARYING DEVICE TO VARY ITS RESISTANCE WHEN SAID SWITCH IS CLOSED THROUGH SAID SECOND CONTACT.
Claim 2
Dependent Claim
92 words
A SEQUENCING DEVICE FOR A PLURALITY OF ELECTRIC LIGHT CIRCUITS COMPRISING A RESISTANCE VARYING DEVICE, A PLURALITY OF NORMALLY OPEN DOUBLE THROW SWITCHES, EACH OF SAID SWITCHES HAVING A FIRST CONTACT CONNECTED DIRECT TO ONE A SAID CIRCUITS AND A SECOND CONTACT CONNECTED TO THE CORRESPONDING CIRCUIT THROUGH SAID RESISTACE VARYING DEVICE, AND MEANS FOR SEQUENTIALLY ACTUATING SAID SWITCHES BETWEEN THEIR NORMALLY OPEN POSITION AND SAID FIRST AND SECOND CONTACTS, AND ADDTIONAL MEANS FOR ACTUATING SAID RESISTANCE VARYING DEVICE TO VARY ITS RESISTANCE WHEN SAID SWITCH IS CLOSED THROUGH SAID SECOND CONTACT.
References Cited (Backward Citations)
US1772606A
Cited
US3050597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-07 | 1972-07-08 | 1973-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-07 | 1976-07-08 | 1977-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-07 | 1980-07-08 | 1981-01-07 | $7700.00 | Window Closed / Lapsed |