US3059529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable projection adapter
Assignee: Individual
•
Filing: 1957-05-21
•
Granted: 1962-10-23
•
Expires: 1977-05-21
Abstract
No abstract record available.
Inventors
- 👤 James W Lucas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:53
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/132; Y; Y10; Y10S; Y10S353/00; Y10S353/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1464833A
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US2227342A
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US2246853A
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US2699704A
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US2863356A
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US2767611A
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US2772600A
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US2697379A
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US2754722A
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US2859660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |