US2941744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible mandrels
Assignee: Davy Loewy Ltd
•
Filing: 1956-01-25
•
Granted: 1960-06-21
•
Expires: 1976-01-25
Abstract
No abstract record available.
Inventors
- 👤 Russell Robert Gordon
- 👤 Bloomfield Dennis George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:15
CPC Classifications
B; B21; B21C; B21C47/00; B21C47/28; B21C47/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US824292A
Cited
US2202563A
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US2352580A
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US2578953A
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US2591730A
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US2586527A
Cited
US2762576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |