US2897373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servo projector
Assignee: ACF Industries Inc
•
Filing: 1954-06-18
•
Granted: 1959-07-28
•
Expires: 1974-06-18
Abstract
No abstract record available.
Inventors
- 👤 Lesti Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:45
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/222; H04N5/257; G; G03; G03B; G03B21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1750785A
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US1906441A
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US1859047A
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US2070787A
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US2259323A
Cited
US2393631A
Cited
US2403915A
Cited
US2463817A
Cited
US2506198A
Cited
US2625659A
Cited
US2666357A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |