Patent US3157110A successfully refreshed from Google Patents.
US3157110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calender
Assignee: Library and Archives Canada
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Filing: 1963-04-29
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Granted: 1964-11-17
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Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 Denis A Goddard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:47
CPC Classifications
D; D21; D21G; D21G1/00; D21G1/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A CALENDER INCLUDING A FRAME STRUCTURE, A SERIES OF SUPERIMPOSED CALENDER ROLLS, MOVABLE BEARINGS IN WHICH THE ENDS OF EACH CALENDER ROLL LOCATED ABOVE THE BOTTOM ROLL ARE ROTATABLY JOURNALLED, FLUID PRESSURE CYLINDERS SLIDABLY MOUNTED FOR VERTICAL MOVEMENT IN SAID FRAME STRUCTURE ON EACH SIDE THEREOF AND CARRYING SAID MOVABLE BEARINGS, A PISTON POSITIONED IN EACH OF SAID CYLINDERS AND A PISTON ROD STRUCTURE EXTENDING THROUGH THE CYLINDERS AT EACH SIDE OF THE FRAME STRUCTURE AND RIGIDLY ATTACHED TO
Claim 2
Dependent Claim
79 words
A CALENDER INCLUDING A FRAME STRUCTURE, A SERIES OF SUPERIMPOSED CALENDER ROLLS, MOVABLE BEARINGS IN WHICH THE ENDS OF EACH CALENDER ROLL LOCATED ABOVE THE BOTTOM ROLL ARE ROTATABLY JOURNALLED, FLUID PRESSURE CYLINDERS SLIDABLY MOUNTED FOR VERTICAL MOVEMENT IN SAID FRAME STRUCTURE ON EACH SIDE THEREOF AND CARRYING SAID MOVABLE BEARINGS, A PISTON POSITIONED IN EACH OF SAID CYLINDERS AND A PISTON ROD STRUCTURE EXTENDING THROUGH THE CYLINDERS AT EACH SIDE OF THE FRAME STRUCTURE AND RIGIDLY ATTACHED TO
References Cited (Backward Citations)
CH255982A
Cited
FR1072476A
Cited
US2850952A
Cited
US2985100A
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US2971457A
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US2992866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-17 | 1968-05-18 | 1968-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-17 | 1972-05-18 | 1972-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-17 | 1976-05-18 | 1976-11-17 | $7700.00 | Window Closed / Lapsed |