US3101845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stretchable mica-containing insulating sheet materials and products insulated therewith
Assignee: 3M Co
•
Filing: 1960-09-26
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Granted: 1963-08-27
•
Expires: 1980-09-26
Abstract
No abstract record available.
Inventors
- 👤 Charles K Heasley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:49
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/32; H02K3/34; H01; H01B; H01B3/00; H01B3/02; H01B3/04; Y; Y10; Y10T; Y10T428/00; Y10T428/14; Y10T428/1414; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/2486; Y10T428/249921; Y10T428/249994; Y10T428/25; Y10T428/251; Y10T428/29; Y10T428/2904; Y10T428/2905; Y10T428/2913; Y10T428/298; Y10T442/00; Y10T442/60; Y10T442/69
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A FLEXIBLE STRETCHABLE MICA-CONTAINING INSULATING SHEET MATERIAL SUITABLE FOR HAND WRAPPING AROUND ELECTRICAL CONDUCTORS UNDER FIRM HAND PULLING, THEREBY BEING ELONGATED AND CONFORMED INTIMATELY TO THE CONFIGURATION OF THE SURFACE BEING WRAPPED, TO PROVIDE A COMPACT VOIDFREE INSULATING COVERING OF VERY HIGH DIELECTRIC STRENGTH UPON HEATING WHILE UNCONFINED, SAID SHEET MATERIAL COMPRISING A THIN POROUS PAPER-LIKE SHEET OF FINELY DIVIDED EXTREMELY THIN MICA FLAKES, A DIFFERENTIALLY UNIFORMLY STRETCHABLE REINFORCING WEB SUPERPOSED UPON SAID PAPER-
Claim 2
Dependent Claim
74 words
A FLEXIBLE STRETCHABLE MICA-CONTAINING INSULATING SHEET MATERIAL SUITABLE FOR HAND WRAPPING AROUND ELECTRICAL CONDUCTORS UNDER FIRM HAND PULLING, THEREBY BEING ELONGATED AND CONFORMED INTIMATELY TO THE CONFIGURATION OF THE SURFACE BEING WRAPPED, TO PROVIDE A COMPACT VOIDFREE INSULATING COVERING OF VERY HIGH DIELECTRIC STRENGTH UPON HEATING WHILE UNCONFINED, SAID SHEET MATERIAL COMPRISING A THIN POROUS PAPER-LIKE SHEET OF FINELY DIVIDED EXTREMELY THIN MICA FLAKES, A DIFFERENTIALLY UNIFORMLY STRETCHABLE REINFORCING WEB SUPERPOSED UPON SAID PAPER-
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) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |