Patent US2444183A successfully refreshed from Google Patents.
US2444183A
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US
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Fiberboard portable platform
Assignee: Individual
•
Filing: 1945-07-14
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Granted: 1948-06-29
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Expires: 1965-07-14
Abstract
No abstract record available.
Inventors
- 👤 Norman L Cahners
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:20
CPC Classifications
B; B65; B65D; B65D19/00; B65D19/0004; B65D19/0006; B65D19/0008; B65D19/002; B65D19/0024; B65D19/0028; B65D19/001; B65D19/0014; B65D19/0016; B65D2519/00; B65D2519/00004; B65D2519/00009; B65D2519/00014; B65D2519/00019; B65D2519/00029; B65D2519/00049; B65D2519/00054; B65D2519/00059; B65D2519/00064; B65D2519/00258; B65D2519/00263; B65D2519/00268; B65D2519/00273; B65D2519/00283; B65D2519/00288; B65D2519/00313; B65D2519/00318; B65D2519/00323; B65D2519/00328; B65D2519/00333; B65D2519/00338; B65D2519/00398; B65D2519/00432; B65D2519/00442; B65D2519/00547; B65D2519/00552; B65D2519/00557; B65D2519/00562; B65D2519/00572
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-29 | 1951-12-29 | 1952-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-29 | 1955-12-29 | 1956-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-29 | 1959-12-29 | 1960-06-29 | $7700.00 | Window Closed / Lapsed |