US3274347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for mounting an eraser head to a record head
Assignee: Michigan Magnetics Inc
•
Filing: 1963-03-04
•
Granted: 1966-09-20
•
Expires: 1983-03-04
Abstract
No abstract record available.
Inventors
- 👤 Leo W Page
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:22
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/127; G11B5/265; G11B5/10; G11B5/105; G11B5/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A HEAD ASSEMBLY FOR TAPE RECORDERS, COMPRISING: A FIRST HEAD HAVING A SHIELD MEMBER DISPOSED IN A PLANE GENERALLY NORMAL TO THE PLANE OF A TAPE PASSING OVER SAID HEAD; AND A SECOND HEAD HAVING PRONG MEANS FLEXIBLY FORMED THEREON, SAID PRONGS EXTENDING LATERALLY FROM SAID SECOND HEAD; SAID PRONG MEANS BEING DIMENSIONED TO ENGAGE EDGES OF SAID SHIELD MEMBER TO HOLD SAID SECOND HEAD IN A FIXED PREDETERMINED POSITION WITH RESPECT TO SAID FIRST HEAD.
Claim 2
Dependent Claim
76 words
A HEAD ASSEMBLY FOR TAPE RECORDERS, COMPRISING: A FIRST HEAD HAVING A SHIELD MEMBER DISPOSED IN A PLANE GENERALLY NORMAL TO THE PLANE OF A TAPE PASSING OVER SAID HEAD; AND A SECOND HEAD HAVING PRONG MEANS FLEXIBLY FORMED THEREON, SAID PRONGS EXTENDING LATERALLY FROM SAID SECOND HEAD; SAID PRONG MEANS BEING DIMENSIONED TO ENGAGE EDGES OF SAID SHIELD MEMBER TO HOLD SAID SECOND HEAD IN A FIXED PREDETERMINED POSITION WITH RESPECT TO SAID FIRST HEAD.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |