US3374707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable width scanning film viewer
Assignee: Houston Fearless Corp
•
Filing: 1965-09-02
•
Granted: 1968-03-26
•
Expires: 1985-09-02
Abstract
No abstract record available.
Inventors
- 👤 William D Johnson
- 👤 Jr Vincent Grippi
- 👤 Edward C Aguilar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:19
CPC Classifications
G; G03; G03B; G03B35/00; G03B35/18; G03B35/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1928002A
Cited
GB507456A
Cited
US2322489A
Cited
US2517414A
Cited
US2518209A
Cited
US3053142A
Cited
US3150580A
Cited
DE1139736B
Cited
US3143035A
Cited
DE1181544B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |