Patent US3535839A successfully refreshed from Google Patents.
US3535839A
Expired / Lapsed
US
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Pretreated sealed parquet plate
Assignee: Bauwerk AG
•
Filing: 1968-05-29
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Granted: 1970-10-27
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Expires: 1988-05-29
Abstract
No abstract record available.
Inventors
- 👤 Joachim Strubing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:08
CPC Classifications
B; B27; B27M; B27M3/00; B27M3/04; B27M3/06; Y; Y10; Y10T; Y10T428/00; Y10T428/16; Y10T428/163; Y10T428/164; Y10T428/167
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1433077A
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GB291256A
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US1819775A
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US1778250A
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US2118841A
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GB704707A
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FR1069350A
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US2835936A
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GB965595A
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GB1021062A
Cited
US3282010A
Cited
US3279138A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |