Patent US3053146A successfully refreshed from Google Patents.
US3053146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic slide projector
Assignee: Honeywell Inc
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Filing: 1960-01-04
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Granted: 1962-09-11
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Expires: 1980-01-04
Abstract
No abstract record available.
Inventors
- 👤 William R King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:29
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)
FR843954A
Cited
US2590492A
Cited
US2579281A
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US2552211A
Cited
US2936672A
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US2774472A
Cited
US2873719A
Cited
US2900074A
Cited
US2949814A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |