US2482117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide shifter for projectors
Assignee: Individual
•
Filing: 1946-07-25
•
Granted: 1949-09-20
•
Expires: 1966-07-25
Abstract
No abstract record available.
Inventors
- 👤 Vernon E Leas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:47
CPC Classifications
G; G03; G03B; G03B23/00; G03B23/02; G03B23/04; G03B23/048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US586245A
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US720099A
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US786883A
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US946501A
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US952199A
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US1002078A
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US1159681A
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US2213779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-19 | 1953-03-21 | 1953-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-19 | 1957-03-21 | 1957-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-19 | 1961-03-21 | 1961-09-20 | $7700.00 | Window Closed / Lapsed |