Patent US4710782A successfully refreshed from Google Patents.
Patent US2037963A successfully refreshed from Google Patents.
US2037963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic slide projector
Assignee: CONS ADVERTISING CORP Ltd
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Filing: 1934-05-21
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Granted: 1936-04-21
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Expires: 1954-05-21
Abstract
No abstract record available.
Inventors
- 👤 Brunish Fred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:32
CPC Classifications
G; G03; G03B; G03B23/00; G03B23/08; G03B23/10; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2133; Y10T74/2136; Y10T74/2138
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) | 1939-04-21 | 1939-10-21 | 1940-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-04-21 | 1943-10-21 | 1944-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-04-21 | 1947-10-21 | 1948-04-21 | $7700.00 | Window Closed / Lapsed |