US3144353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefin coated with thermoset coating used in magnetic recording media
Assignee: Ampex Corp
•
Filing: 1963-03-08
•
Granted: 1964-08-11
•
Expires: 1983-03-08
Abstract
No abstract record available.
Inventors
- 👤 John W Hargis
- 👤 Dervin L Flowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:27
CPC Classifications
C; C09; C09D; C09D125/00; C09D125/02; C09D125/04; C09D125/08; C09D125/10; C08; C08J; C08J7/00; C08J7/04; C08J7/043; C09D161/00; C09D161/20; C09D161/26; C09D161/28; G; G11; G11B; G11B5/00; G11B5/62; G11B5/68; G11B5/70; G11B5/702; G11B5/7028; H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/20; H01F1/22; H01F1/24; H01F1/26; C08J2323/00; C08J2323/02; C08J2453/00; C08J2453/02; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
26 words
AS A NEW ARTICLE OF MANUFACTURE A FILM BASE OF A POLYOLEFIN POLYMER HAVING A THERMOSET COATING THEREON, SAID COATING COMPRISING ON A RESIN SOLIDS BASES:
Claim 2
Dependent Claim
26 words
AS A NEW ARTICLE OF MANUFACTURE A FILM BASE OF A POLYOLEFIN POLYMER HAVING A THERMOSET COATING THEREON, SAID COATING COMPRISING ON A RESIN SOLIDS BASES:
Claim 3
Dependent Claim
15 words
THE ARTICLE OF CLAIM 1 WHEREIN THE COATING HAS DISPERSED THEREIN FINELY DIVIDED MAGNETIC PARTICLES.
References Cited (Backward Citations)
US2589567A
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US2630420A
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US2871213A
Cited
US2914480A
Cited
US2969143A
Cited
US2931740A
Cited
GB869452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |