US2598071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Rose Brothers Gainsborough Ltd
•
Filing: 1947-02-25
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Granted: 1952-05-27
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Expires: 1967-02-25
Abstract
No abstract record available.
Inventors
- 👤 Rose Alfred German
- 👤 Page James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:41
CPC Classifications
B; B31; B31B; B31B50/00; B31B50/74; B31B50/76; B31B50/78; B31B50/786; B31B50/80; B31B50/804; B31B2100/00; B31B2120/00; B31B2120/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |