Patent US2754731A successfully refreshed from Google Patents.
US2754731A
Expired / Lapsed
US
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Partition assembly machine
Assignee: S&S Corrugated Paper Machinery Co Inc
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Filing: 1950-08-24
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Granted: 1956-07-17
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Expires: 1970-08-24
Abstract
No abstract record available.
Inventors
- 👤 Albert F Shields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:23
CPC Classifications
B; B31; B31D; B31D5/00; B31D5/0004; B31D5/0013; B31B; B31B2105/00; B31B2120/00; B31B2120/20; B31B2120/25; B31B50/00; B31B50/74; B31B50/81
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1691919A
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US1634074A
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US1947561A
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US2191586A
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US2237099A
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US2353842A
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US2381743A
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US2398872A
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US2532626A
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US2594924A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |