US3205092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic tape having improved antistatic properties
Assignee: Novartis Corp
•
Filing: 1962-02-20
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Granted: 1965-09-07
•
Expires: 1982-02-20
Abstract
No abstract record available.
Inventors
- 👤 Rosenberg Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:47
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3442; C08K5/3445; G; G11; G11B; G11B5/00; G11B5/62; G11B5/68; G11B5/70; G11B5/702; G11B5/7028; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/19; Y10S260/20; Y10S428/00; Y10S428/90; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
IN A MAGNETIC TAPE WITH ENHANCED ANTISTATIC CHARACTERTISTICS, THE IMPORVEMENT COMPRISING A TAPE FORMED OF A NON-MAGNETIC BASE AND A COATING THEREON OF A BINDER CONTAINING MAGNETIZABLE IRON OXIDE PARTICLES, TOGETHER WITH FROM ABOUT 1% TO ABOUT 10% BY WEIGHT, BASED ON THE WEIGHT OF IRON OXIDE, OF AN ANTISTATIC COMPOUND COMPRISING A SALT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF (I) THE IMIDAZOLINE COMPOUND OF THE FORMULA: 1-R2,2-R1-2-IMIDAZOLINE WHEREIN
Claim 2
Dependent Claim
72 words
IN A MAGNETIC TAPE WITH ENHANCED ANTISTATIC CHARACTERTISTICS, THE IMPORVEMENT COMPRISING A TAPE FORMED OF A NON-MAGNETIC BASE AND A COATING THEREON OF A BINDER CONTAINING MAGNETIZABLE IRON OXIDE PARTICLES, TOGETHER WITH FROM ABOUT 1% TO ABOUT 10% BY WEIGHT, BASED ON THE WEIGHT OF IRON OXIDE, OF AN ANTISTATIC COMPOUND COMPRISING A SALT OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF (I) THE IMIDAZOLINE COMPOUND OF THE FORMULA: 1-R2,2-R1-2-IMIDAZOLINE WHEREIN
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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) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |