Patent US3228619A successfully refreshed from Google Patents.
US3228619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous film-handling system
Assignee: Individual
•
Filing: 1963-08-29
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Granted: 1966-01-11
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Expires: 1983-08-29
Abstract
No abstract record available.
Inventors
- 👤 James B Hardin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:30
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
IN A REEL FOR A CONTINUOUS LOOP SPIRALLY WOUND FILM ROLL WHEREIN FILM IS FED ONTO THE PERIPHERY AND IS WITHDRAWN FROM THE CENTER THEREOF, THE COMBINATION WHICH COMPRISES A PLURALITY OF PAIRS OF CYLINDRICAL ROLLERS EXTENDING HORIZONTALLY AND SUBSTANTIALLY RADIALLY FROM A CENTRAL AXIS, EACH OF SAID PAIRS OF ROLLERS INCLUDING A DRIVE ROLLER OF UNITARY CONSTRUCTION FOR SUPPORT OF SAID FILM ROLL AND A FOLLOWER ROLLER POSITIONED PARALLEL TO AND VERTICALLY ABOVE SAID DRIVE ROLLER, EACH SAID FOLLOWER ROLLER BEING SEGMENTED AND MOUNTED FOR FREE TRANSLATIONAL MOVE-
Claim 2
Dependent Claim
89 words
IN A REEL FOR A CONTINUOUS LOOP SPIRALLY WOUND FILM ROLL WHEREIN FILM IS FED ONTO THE PERIPHERY AND IS WITHDRAWN FROM THE CENTER THEREOF, THE COMBINATION WHICH COMPRISES A PLURALITY OF PAIRS OF CYLINDRICAL ROLLERS EXTENDING HORIZONTALLY AND SUBSTANTIALLY RADIALLY FROM A CENTRAL AXIS, EACH OF SAID PAIRS OF ROLLERS INCLUDING A DRIVE ROLLER OF UNITARY CONSTRUCTION FOR SUPPORT OF SAID FILM ROLL AND A FOLLOWER ROLLER POSITIONED PARALLEL TO AND VERTICALLY ABOVE SAID DRIVE ROLLER, EACH SAID FOLLOWER ROLLER BEING SEGMENTED AND MOUNTED FOR FREE TRANSLATIONAL MOVE-
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |