US2950995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical resistance element
Assignee: Beckman Coulter Inc
•
Filing: 1957-03-18
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Granted: 1960-08-30
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Expires: 1977-03-18
Abstract
No abstract record available.
Inventors
- 👤 Sr Thomas M Place
- 👤 Jr Thomas M Place
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:02
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/06; H01C17/065; H01C17/06506; H01C17/06513; H01C17/06526; H01C7/00; H01C7/003; Y; Y10; Y10S; Y10S428/00; Y10S428/907; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49082; Y10T29/49099; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
29 words
A RESISTANCE ELEMENT COMPRISING A HIGH-TEMPERATURERESISTANT, ELECTRICALLY NONCONDUCTIVE BASE HAVING FIRED THERETO A LAYER OF RESISTANCE MATERIAL COMPRISING 91-98 PERCENT BY WEIGHT OF SOLIDIFIED GLASS AND 2-9 PERCENT BY
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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) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |