US2151822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film marking device
Assignee: RKO STUDIOS Inc
•
Filing: 1935-10-16
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Granted: 1939-03-28
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Expires: 1955-10-16
Abstract
No abstract record available.
Inventors
- 👤 Armstead C Winchester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:17
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/24; G03B2217/00; G03B2217/24; G03B2217/242; G03B2217/245; Y; Y10; Y10T; Y10T408/00; Y10T408/50; Y10T408/55; Y10T408/561; Y10T408/5623; Y10T408/56253; Y10T408/65; Y10T408/675; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/869; Y10T83/8752; Y10T83/8755; Y10T83/8821
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) | 1942-03-27 | 1942-09-26 | 1943-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-03-27 | 1946-09-26 | 1947-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-03-27 | 1950-09-26 | 1951-03-28 | $7700.00 | Window Closed / Lapsed |