US2652219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable platform
Assignee: TRI STATE ENGINEERING Co
•
Filing: 1948-09-18
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Granted: 1953-09-15
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Expires: 1968-09-18
Abstract
No abstract record available.
Inventors
- 👤 Oscar F Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:12
CPC Classifications
B; B65; B65D; B65D19/00; B65D19/0004; B65D19/0053; B65D19/0077; B65D19/0089; B65D19/0093; B65D19/0095; B65D2519/00; B65D2519/00004; B65D2519/00009; B65D2519/00014; B65D2519/00024; B65D2519/00049; B65D2519/00059; B65D2519/00084; B65D2519/00094; B65D2519/00258; B65D2519/00263; B65D2519/00273; B65D2519/00283; B65D2519/00293; B65D2519/00298; B65D2519/00313; B65D2519/00323; B65D2519/00328; B65D2519/00333; B65D2519/00353; B65D2519/00368; B65D2519/00378; B65D2519/00547; B65D2519/00552; B65D2519/00557; B65D2519/00562
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) | 1956-09-14 | 1957-03-16 | 1957-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-14 | 1961-03-16 | 1961-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-14 | 1965-03-16 | 1965-09-15 | $7700.00 | Window Closed / Lapsed |