US2845962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antistatic fabrics
Assignee: Dunlop Rubber Co Ltd
•
Filing: 1954-06-28
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Granted: 1958-08-05
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Expires: 1974-06-28
Abstract
No abstract record available.
Inventors
- 👤 Bulgin Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:59
CPC Classifications
D; D06; D06M; D06M11/00; D06M11/73; D06M11/74; C; C08; C08K; C08K3/00; C08K3/02; C08K3/04; D01; D01F; D01F1/00; D01F1/02; D01F1/09; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S57/00; Y10S57/901
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
AN ANTISTATIC FABRIC MADE UP OF FIBROUS MATERIAL HAVING ELECTRICALLY CONDUCTIVE CARBON BLACK DISPERSED THROUGHOUT THE FIBRE AND FIBROUS MATERIAL FREE FROM SUCH BLACK IN SUCH PROPORTIONS THAT THE ELECTRICAL RESISTANCE OF THE FABRIC AS A WHOLE IS LESS THAN 100,000 MEGOHMS PER UNIT SQUARE AT ALL HUMIDITIES.
Claim 2
Dependent Claim
48 words
AN ANTISTATIC FABRIC MADE UP OF FIBROUS MATERIAL HAVING ELECTRICALLY CONDUCTIVE CARBON BLACK DISPERSED THROUGHOUT THE FIBRE AND FIBROUS MATERIAL FREE FROM SUCH BLACK IN SUCH PROPORTIONS THAT THE ELECTRICAL RESISTANCE OF THE FABRIC AS A WHOLE IS LESS THAN 100,000 MEGOHMS PER UNIT SQUARE AT ALL HUMIDITIES.
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) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |