Patent US2701904A successfully refreshed from Google Patents.
US2701904A
Expired / Lapsed
US
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Apparatus for making building panels
Assignee: Daystrom Inc
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Filing: 1949-02-09
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Granted: 1955-02-15
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Expires: 1969-02-09
Abstract
No abstract record available.
Inventors
- 👤 Roensch Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:54
CPC Classifications
B; B28; B28B; B28B23/00; B28B23/02; B28B23/028; B28B7/00; B28B7/08; B28B7/082; B28B7/085; B28B7/40; B28B7/46
Claims Analysis
Total Claims: 0
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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) | 1958-02-14 | 1958-08-16 | 1959-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-02-14 | 1962-08-16 | 1963-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-02-14 | 1966-08-16 | 1967-02-15 | $7700.00 | Window Closed / Lapsed |