US3230867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper finishing mechanism
Assignee: Individual
•
Filing: 1961-12-04
•
Granted: 1966-01-25
•
Expires: 1981-12-04
Abstract
No abstract record available.
Inventors
- 👤 Benjamin J H Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:55
CPC Classifications
D; D21; D21G; D21G1/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
116 words
A CALENDER FOR GLOSS-FINISHING ONE SURFACE OF A CONTINUOUS WEB OF POROUS, INK-RECEPTIVE PAPER, SAID CALENDER COMPRISING: (A) A FRAME; (B) A SMOOTH METAL MASTER ROLL JOURNALLED FOR ROTATION ABOUT A FIXED AXIS ON SAID FRAME; (C) MEANS ROTATABLY DRIVING SAID MASTER ROLL; (D) MEANS UNIFORMLY HEATING THE SURFACE OF SAID MASTER ROLL; (E) AT LEAST ONE RESILIENT AUXILIARY ROLL JOURNALLED ON SAID FRAME FOR FREE ROTATION ABOUT A MOVABLE AXIS; (F) SELECTIVELY CONTROLLABLE PRESSURIZED FLUID MEANS FOR MOVING SAID AUXILIARY ROLL INTO AND AWAY FROM NIPPING ENGAGEMENT WITH SAID MASTER ROLL, THE RESILIENT AUXILIARY ROLL WHEN SO ENGAGED BEING FRICTIONALLY DRIVEN SOLELY BY AND AT SUBSTANTIALLY THE SAME PERIPHERAL SPEED AS SAID MASTER ROLL; AND
References Cited (Backward Citations)
US222081A
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US555385A
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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) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |