Patent US2375144A successfully refreshed from Google Patents.
US2375144A
Expired / Lapsed
US
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Folding mechanism
Assignee: STEPHANO BROTHERS
•
Filing: 1943-05-28
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Granted: 1945-05-01
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Expires: 1963-05-28
Abstract
No abstract record available.
Inventors
- 👤 Constantine S Stephano
- 👤 Brightwell Robert Roland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:54
CPC Classifications
B; B65; B65B; B65B51/00; B31; B31B; B31B50/00; B31B50/004; B31B50/0045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-04-30 | 1948-10-30 | 1949-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-04-30 | 1952-10-30 | 1953-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-04-30 | 1956-10-30 | 1957-05-01 | $7700.00 | Window Closed / Lapsed |