US3227986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single-turn annular resistance elements
Assignee: Beckman Coulter Inc
•
Filing: 1962-06-22
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Granted: 1966-01-04
•
Expires: 1982-06-22
Abstract
No abstract record available.
Inventors
- 👤 Anthony M Serdahely
- 👤 Silverman David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:35
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/10; H05B3/16; H01; H01C; H01C10/00; H01C10/30; H01C10/301; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49087; Y10T29/49096
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A SINGLE-TURN ANNULAR RESISTANCE ELEMENT LYING IN ONE PLANE COMPRISING: A MALLEABLE METAL CORE HAVING A PERIPHERAL ANNULAR PORTION; A COATING OF INSULATION ENCOMPASSING SAID CORE; AND A RESISTANCE WIRE HELICALLY WOUND UPON SAID CORE EXTERNALLY OF SAID INSULATION, SAID RESISTANCE WIRE TURNS, INSULATION AND CORE BEING FLATTENED ON AT LEAST ONE PORTION THEREOF AFTER SAID RESISTANCE WIRE IS WOUND ON SAID CORE SO THAT SAID TURNS OF RESISTANCE WIRE ARE UNIFORMLY EMBEDDED IN SAID INSULATION IN SAID FLAT PORTION AND PRESENT A UNIFORM PLANAR SURFACE.
Claim 2
Dependent Claim
86 words
A SINGLE-TURN ANNULAR RESISTANCE ELEMENT LYING IN ONE PLANE COMPRISING: A MALLEABLE METAL CORE HAVING A PERIPHERAL ANNULAR PORTION; A COATING OF INSULATION ENCOMPASSING SAID CORE; AND A RESISTANCE WIRE HELICALLY WOUND UPON SAID CORE EXTERNALLY OF SAID INSULATION, SAID RESISTANCE WIRE TURNS, INSULATION AND CORE BEING FLATTENED ON AT LEAST ONE PORTION THEREOF AFTER SAID RESISTANCE WIRE IS WOUND ON SAID CORE SO THAT SAID TURNS OF RESISTANCE WIRE ARE UNIFORMLY EMBEDDED IN SAID INSULATION IN SAID FLAT PORTION AND PRESENT A UNIFORM PLANAR SURFACE.
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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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |