US2804672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for manufacturing building panels
Assignee: Individual
•
Filing: 1956-05-28
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Granted: 1957-09-03
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Expires: 1976-05-28
Abstract
No abstract record available.
Inventors
- 👤 Robert L Altschuler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:50
CPC Classifications
B; B28; B28B; B28B1/00; B28B1/52; B28B1/526; B27; B27N; B27N3/00; B27N3/08; B27N3/28; B27N5/00; B28B5/00; B28B5/02; B28B5/026; B28B5/027; B29; B29C; B29C67/00; B29C67/24; B29C67/242; B29C67/245; Y; Y10; Y10S; Y10S264/00; Y10S264/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US805324A
Cited
US845146A
Cited
US980144A
Cited
US1908640A
Cited
US2271058A
Cited
US2648262A
Cited
US2717420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |