Patent US3286304A successfully refreshed from Google Patents.
US3286304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device in multilayer presses
Assignee: Valmet AB
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Filing: 1964-03-17
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Granted: 1966-11-22
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Expires: 1984-03-17
Abstract
No abstract record available.
Inventors
- 👤 Falkinger John Willard
- 👤 Olofsson Bertil Olof
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:03
CPC Classifications
B; B27; B27N; B27N3/00; B27N3/08; B27N3/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A DEVICE IN MULTILAYER PRESSES FOR PRODUCTION OF SHEETS OR BOARDS OF FIBROUS MATERIAL, COMPRISING A PLURALITY OF SUPERIMPOSED HEATED PRESS PLATES, A ROLLER MEMBER ASSOCIATED EXTERNALLY OF EACH PLATE EXCEPT THE TOP PLATE, SAID PLATES ADAPTED TO HAVE SHEET OR BOARD BLANKS FED ON WIRE SIEVES ADAPTED TO BE UNROLLED FROM SAID ROLLER MEMBERS TO BE SUBJECTED SUBSEQUENTLY TO PRESSURE AND HEAT BETWEEN SAID PRESS PLATES AND REMOVAL FROM THE PASS AFTER THE PRESSING OPERATION, CHARACTERIZED BY AT LEAST ONE TRACTION MEMBER DISPOSED TO ACT ON SAID WIRE SIEVES AT
Claim 2
Independent Claim
91 words
A DEVICE IN MULTILAYER PRESSES FOR PRODUCTION OF SHEETS OR BOARDS OF FIBROUS MATERIAL, COMPRISING A PLURALITY OF SUPERIMPOSED HEATED PRESS PLATES, A ROLLER MEMBER ASSOCIATED EXTERNALLY OF EACH PLATE EXCEPT THE TOP PLATE, SAID PLATES ADAPTED TO HAVE SHEET OR BOARD BLANKS FED ON WIRE SIEVES ADAPTED TO BE UNROLLED FROM SAID ROLLER MEMBERS TO BE SUBJECTED SUBSEQUENTLY TO PRESSURE AND HEAT BETWEEN SAID PRESS PLATES AND REMOVAL FROM THE PASS AFTER THE PRESSING OPERATION, CHARACTERIZED BY AT LEAST ONE TRACTION MEMBER DISPOSED TO ACT ON SAID WIRE SIEVES AT
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |