US3332690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Connectable concentric record discs
Assignee: Individual
•
Filing: 1965-02-05
•
Granted: 1967-07-25
•
Expires: 1985-02-05
Abstract
No abstract record available.
Inventors
- 👤 Michetti Sante
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:58
CPC Classifications
G; G11; G11B; G11B3/00; Y; Y10; Y10T; Y10T428/00; Y10T428/21; Y10T428/218
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A RECORD COMPRISING A PLURALITY OF INDIVIDUAL CONCENTRIC DISCS EACH HAVING AT LEAST ONE RECORDING THEREON, EACH DISC BEING CONSECUTIVELY LARGER THAN ITS ADJACENT SMALLER DISC, THE ANNULAR EDGES OF THE ADJACENT DISCS ENGAGING EACH OTHER IN GRIPPING BUT REMOVABLE RELATION.
Claim 2
Dependent Claim
41 words
A RECORD COMPRISING A PLURALITY OF INDIVIDUAL CONCENTRIC DISCS EACH HAVING AT LEAST ONE RECORDING THEREON, EACH DISC BEING CONSECUTIVELY LARGER THAN ITS ADJACENT SMALLER DISC, THE ANNULAR EDGES OF THE ADJACENT DISCS ENGAGING EACH OTHER IN GRIPPING BUT REMOVABLE RELATION.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |