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Patent US2213047A successfully refreshed from Google Patents.
US2213047A
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US
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Assignee: Individual
•
Filing: 1938-06-30
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Granted: 1940-08-27
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Expires: 1958-06-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Glenway Maxon
- 👤 Gilson Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:07
CPC Classifications
B; B28; B28C; B28C7/00; B28C7/04; B28C7/06; B28C7/08; B28C7/0835; B28C7/087; B28C7/0888
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) | 1943-08-27 | 1944-02-26 | 1944-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-08-27 | 1948-02-26 | 1948-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-08-27 | 1952-02-26 | 1952-08-27 | $7700.00 | Window Closed / Lapsed |