Patent US3176608A successfully refreshed from Google Patents.
US3176608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calender
Assignee: Farrel Corp
•
Filing: 1963-07-24
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Granted: 1965-04-06
•
Expires: 1983-07-24
Abstract
No abstract record available.
Inventors
- 👤 Charles J Klara
- 👤 Warren C Whittum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:52
CPC Classifications
D; D21; D21G; D21G1/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
104 words
A PAPER CALENDER COMPRISING FRAME MEANS ROTATABLY SUPPORTING A MAIN CALENDER ROLL, A SUPPORT ROLL ROTATABLY MOUNTED BELOW SAID MAIN ROLL, MEANS URGING SAID SUPPORT ROLL AGAINST SAID MAIN ROLL TO INHIBIT DEFLECTION OF SAID MAIN ROLL, A PLURALITY OF PRESSER ROLLS SPACED APART AROUND SAID MAIN ROLL AND IN OPERATIVE RELATION THERETO, HOUSING MEANS ROTATABLY CARRYING SAID PRESSER ROLLS, AND MEANS URGING EACH OF SAID PRESSER ROLLS RADIALLY TOWARD THE AXIS OF SAID MAIN ROLL, SAID HOUSING MEANS BEING FORMED IN TWO PORTIONS EACH PIVOTALLY MOUNTED TO SWING AWAY FROM ONE ANOTHER AND FROM THE MAIN ROLL TO ALLOW ACCESS TO THE ROLLS.
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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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |