US2967715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniature recording device
Assignee: General Time Corp
•
Filing: 1955-04-19
•
Granted: 1961-01-10
•
Expires: 1975-04-19
Abstract
No abstract record available.
Inventors
- 👤 William A Black
- 👤 John S Millard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:22
CPC Classifications
G; G11; G11B; G11B25/00; G11B25/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US590325A
Cited
US619916A
Cited
US989629A
Cited
US948327A
Cited
GB190925457A
Cited
US1057344A
Cited
US1177887A
Cited
US1337280A
Cited
US1615243A
Cited
US2016041A
Cited
US2078113A
Cited
US2205314A
Cited
US2233242A
Cited
US2224332A
Cited
US2302503A
Cited
US2309542A
Cited
US2293219A
Cited
US2357033A
Cited
US2455466A
Cited
US2380037A
Cited
US2576250A
Cited
US2622883A
Cited
US2626158A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |