US3284752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Duplex variable electrical resistance device
Assignee: TERENCE BALBY
•
Filing: 1965-10-24
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Granted: 1966-11-08
•
Expires: 1985-10-24
Abstract
No abstract record available.
Inventors
- 👤 Bellar Oscar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:28
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/16; H01C10/20; H01C10/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
IN A DUPLEX, VARIABLE ELECTRICAL RESISTANCE DEVICE, A BASE INCLUDING A RESISTANCE ASSEMBLY SUPPORT, FIRST AND SECOND RESISTANCE ASSEMBLIES CARRIED BY SAID SUPPORT EACH COMPRISING A PLURALITY OF ELONGATED ELECTRICAL CONDUCTORS ARRANGED IN SIDE BY SIDE RELATION AND ELECTRICALLY INSULATED FROM EACH OTHER THROUGHOUT THEIR LENGTHS, AND A PAIR OF SEPARATE, MANUALLY OPERABLE MEANS CARRIED BY SAID BASE, ONE OF SAID MANUALLY OPERABLE MEANS BEING ASSOCIATED WITH SAID FIRST RESISTANCE ASSEMBLY AND THE OTHER WITH SAID SECOND RESISTANCE ASSEMBLY, EACH OF SAID MANUALLY OPERABLE MEANS INCLUDING A RESILIENT BRUSH COMPONENT ELECTRICALLY INTERCONNECTING THE CONDUCTORS OF THE ONE OF SAID ASSEMBLIES WITH WHICH IT IS ASSOCIATED AT INFINITELY VARIABLE POINTS IN THE LENGTH THEREOF,ONE OF SAID MANUALLY OPERABLE MEANS ADDITIONALLY SERVING AS THE SUPPORT FOR THE OTHER OF SAID MANUALLY OPERABLE MEANS, MEANS INTERCONNECTING SAID MANUALLY OPERABLE MEANS EFFECTIVE TO PER-
Claim 2
Dependent Claim
140 words
IN A DUPLEX, VARIABLE ELECTRICAL RESISTANCE DEVICE, A BASE INCLUDING A RESISTANCE ASSEMBLY SUPPORT, FIRST AND SECOND RESISTANCE ASSEMBLIES CARRIED BY SAID SUPPORT EACH COMPRISING A PLURALITY OF ELONGATED ELECTRICAL CONDUCTORS ARRANGED IN SIDE BY SIDE RELATION AND ELECTRICALLY INSULATED FROM EACH OTHER THROUGHOUT THEIR LENGTHS, AND A PAIR OF SEPARATE, MANUALLY OPERABLE MEANS CARRIED BY SAID BASE, ONE OF SAID MANUALLY OPERABLE MEANS BEING ASSOCIATED WITH SAID FIRST RESISTANCE ASSEMBLY AND THE OTHER WITH SAID SECOND RESISTANCE ASSEMBLY, EACH OF SAID MANUALLY OPERABLE MEANS INCLUDING A RESILIENT BRUSH COMPONENT ELECTRICALLY INTERCONNECTING THE CONDUCTORS OF THE ONE OF SAID ASSEMBLIES WITH WHICH IT IS ASSOCIATED AT INFINITELY VARIABLE POINTS IN THE LENGTH THEREOF,ONE OF SAID MANUALLY OPERABLE MEANS ADDITIONALLY SERVING AS THE SUPPORT FOR THE OTHER OF SAID MANUALLY OPERABLE MEANS, MEANS INTERCONNECTING SAID MANUALLY OPERABLE MEANS EFFECTIVE TO PER-
References Cited (Backward Citations)
DE658067C
Cited
US1490334A
Cited
US2065805A
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US2122370A
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US2277883A
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US2548591A
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US2724034A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |