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US1532084A
Expired / Lapsed
US
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Board composed of interlaced fibers
Assignee: C F DAHLBERG
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Filing: 1920-03-26
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Granted: 1925-03-31
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Expires: 1940-03-26
Abstract
No abstract record available.
Inventors
- 👤 John K Shaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:32
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/16; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T442/00; Y10T442/60; Y10T442/659; Y10T442/668
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1928-03-30 | 1928-09-29 | 1929-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-03-30 | 1932-09-29 | 1933-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-03-30 | 1936-09-29 | 1937-03-31 | $7700.00 | Window Closed / Lapsed |