US2748653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote control slide projector
Assignee: Viewlex Inc
•
Filing: 1952-05-29
•
Granted: 1956-06-05
•
Expires: 1972-05-29
Abstract
No abstract record available.
Inventors
- 👤 Pollan David
- 👤 Halahan John
- 👤 Floyd A Lyon
- 👤 Theodore F Aronson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:56
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/14; F02C3/16; G; G03; G03B; G03B23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2221753A
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US2375706A
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US2537429A
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US2583442A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-05 | 1959-12-05 | 1960-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-05 | 1963-12-05 | 1964-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-05 | 1967-12-05 | 1968-06-05 | $7700.00 | Window Closed / Lapsed |