Patent US2207638A successfully refreshed from Google Patents.
US2207638A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1938-05-26
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Granted: 1940-07-09
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Expires: 1958-05-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Ambrose Rose
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:49
CPC Classifications
A; A63; A63F; A63F5/00; A63F5/0088; A63F3/00; A63F3/00003; A63F3/00028; A63F3/0005; A63F5/02; A63F7/00; A63F7/22; A63F7/36; A63F7/40; A63F2007/4031
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) | 1943-07-09 | 1944-01-08 | 1944-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-07-09 | 1948-01-08 | 1948-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-07-09 | 1952-01-08 | 1952-07-09 | $7700.00 | Window Closed / Lapsed |