US3072411A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic stop mechanism
Assignee: GTE Sylvania Inc
•
Filing: 1953-04-29
•
Granted: 1963-01-08
•
Expires: 1973-04-29
Abstract
No abstract record available.
Inventors
- 👤 Hultquist J Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:14
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/08; G11B17/12; G11B17/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
IN A PHONOGRAPH PLAYER OF THE AUTOMATIC RECORD DISC CHANGER TYPE, A TURNTABLE HAVING A CENTRAL POST AFFIXED THERETO, DRIVE MEANS FOR ROTATING THE TURNTABLE AND POST, RECORD DISPENSING MEANS AT THE UPPER END OF THE POST ROTATABLE THEREWITH, MEANS FOR SENSING RECORDS AT THE UPPER END OF THE POST, AND MEANS OPERATIVE AT THE END OF PLAYING A RECORD, AND IN RESPONSE TO THE SENSING MEANS SENSING THE ABSENCE OF ANY RECORDS AT THE UPPER END OF THE POST, FOR STOPPING THE DRIVE MEANS.
Claim 2
Dependent Claim
85 words
IN A PHONOGRAPH PLAYER OF THE AUTOMATIC RECORD DISC CHANGER TYPE, A TURNTABLE HAVING A CENTRAL POST AFFIXED THERETO, DRIVE MEANS FOR ROTATING THE TURNTABLE AND POST, RECORD DISPENSING MEANS AT THE UPPER END OF THE POST ROTATABLE THEREWITH, MEANS FOR SENSING RECORDS AT THE UPPER END OF THE POST, AND MEANS OPERATIVE AT THE END OF PLAYING A RECORD, AND IN RESPONSE TO THE SENSING MEANS SENSING THE ABSENCE OF ANY RECORDS AT THE UPPER END OF THE POST, FOR STOPPING THE DRIVE MEANS.
References Cited (Backward Citations)
GB377173A
Cited
GB549635A
Cited
US2435264A
Cited
CH253046A
Cited
US2634135A
Cited
US2763487A
Cited
US2707639A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |