US2212823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tensioning device for cord drive
Assignee: RCA Corp
•
Filing: 1939-03-11
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Granted: 1940-08-27
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Expires: 1959-03-11
Abstract
No abstract record available.
Inventors
- 👤 Bulk Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:57
CPC Classifications
F; F16; F16H; F16H19/00; F16H19/02; F16H19/06; F16H19/0672; F16H19/001; F16H19/003; F16H19/005; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18832; Y10T74/18848; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/20408
Claims Analysis
Total Claims: 0
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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) | 1943-08-27 | 1944-02-26 | 1944-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-08-27 | 1948-02-26 | 1948-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-08-27 | 1952-02-26 | 1952-08-27 | $7700.00 | Window Closed / Lapsed |