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US2896504A
Expired / Lapsed
US
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Optical system for nonintermittent motion pictures
Assignee: Individual
•
Filing: 1958-02-20
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Granted: 1959-07-28
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Expires: 1978-02-20
Abstract
No abstract record available.
Inventors
- 👤 Schwesinger Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:41
CPC Classifications
G; G02; G02B; G02B26/00; G02B26/08; G02B26/10; G02B26/108; G03; G03B; G03B41/00; G03B41/02; G03B41/04; G03B41/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2769367A
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 |