Patent US2583650A successfully refreshed from Google Patents.
US2583650A
Expired / Lapsed
US
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Collapsible building drum
Assignee: Uniroyal Inc
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Filing: 1950-02-25
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Granted: 1952-01-29
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Expires: 1970-02-25
Abstract
No abstract record available.
Inventors
- 👤 Hollis C Hodgkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:34
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/24; B29D30/244; B29D30/248
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1481850A
Cited
US1434567A
Cited
US1558603A
Cited
US1877746A
Cited
US2201468A
Cited
US2201469A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |