Patent US2297285A successfully refreshed from Google Patents.
US2297285A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1941-03-20
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Granted: 1942-09-29
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Expires: 1961-03-20
Abstract
No abstract record available.
Inventors
- 👤 Charles W Bledsoe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:47
CPC Classifications
A; A44; A44B; A44B15/00; A44B15/005; G; G09; G09F; G09F3/00; G09F3/08; G09F3/18; Y; Y10; Y10S; Y10S63/00; Y10S63/03; Y10T; Y10T70/00; Y10T70/80; Y10T70/8432; Y10T70/8676; Y10T70/8703
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) | 1945-09-28 | 1946-03-30 | 1946-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-09-28 | 1950-03-30 | 1950-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-09-28 | 1954-03-30 | 1954-09-29 | $7700.00 | Window Closed / Lapsed |