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US3335499A
Expired / Lapsed
US
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Method for humidifying boards of wood fibre or similar material
Assignee: Svenska Flaktfabriken AB
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Filing: 1964-06-23
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Granted: 1967-08-15
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Expires: 1984-06-23
Abstract
No abstract record available.
Inventors
- 👤 Larsson Bengt-Ake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:37
CPC Classifications
D; D21; D21G; D21G7/00; D21J; D21J1/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1593598A
Cited
US1668314A
Cited
US2906034A
Cited
US2919492A
Cited
US3226839A
Cited
US3199213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |