US2859636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Push button mechanism for tape recorder and play back device
Assignee: WILCOX GAY Corp
•
Filing: 1954-01-13
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Granted: 1958-11-11
•
Expires: 1974-01-13
Abstract
No abstract record available.
Inventors
- 👤 Walter C Hironimus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:29
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/02; G11B15/10; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20238; Y10T74/20244
Claims Analysis
Total Claims: 0
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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) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |