US3421673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic film threading device
Assignee: Yokogawa Electric Corp
•
Filing: 1966-11-21
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Granted: 1969-01-14
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Expires: 1986-11-21
Abstract
No abstract record available.
Inventors
- 👤 Yoshio Nakamatsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:45
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/26; G11B15/34; G03; G03B; G03B1/00; G03B1/56; G03B21/00; G03B21/14; G03B21/32; G03B21/43
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
AN AUTOMATIC FILM LOADING DEVICE COMPRISING A PAIR OF ENDLESS FLEXIBLE PARALLEL LEADING BELTS INCLUDING A PART OR ALL OF A FILM LOADING PATH AND A LEADING PLATE WHICH IS PROVIDED BETWEEN A PART OF SAID LEADING BELTS AND IS ADAPTED TO HOLD A FIXED LENGTH OF THE FORWARD END OF THE FILM, WHEREBY, IN LOADING, WHEN SAID LEADING BELTS ARE MOVED, THE FORWARD END OF THE FILM WILL AUTOMATICALLY BE LED ALONG THE PATH.
Claim 2
Dependent Claim
75 words
AN AUTOMATIC FILM LOADING DEVICE COMPRISING A PAIR OF ENDLESS FLEXIBLE PARALLEL LEADING BELTS INCLUDING A PART OR ALL OF A FILM LOADING PATH AND A LEADING PLATE WHICH IS PROVIDED BETWEEN A PART OF SAID LEADING BELTS AND IS ADAPTED TO HOLD A FIXED LENGTH OF THE FORWARD END OF THE FILM, WHEREBY, IN LOADING, WHEN SAID LEADING BELTS ARE MOVED, THE FORWARD END OF THE FILM WILL AUTOMATICALLY BE LED ALONG THE PATH.
References Cited (Backward Citations)
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Cited
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US1991137A
Cited
US2695545A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |