Patent US2325154A successfully refreshed from Google Patents.
Patent US2287728A successfully refreshed from Google Patents.
US2287728A
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US
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Assignee: Individual
•
Filing: 1941-05-31
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Granted: 1942-06-23
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Expires: 1961-05-31
Abstract
No abstract record available.
Inventors
- 👤 James F Dale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:01
CPC Classifications
B; B07; B07C; B07C7/00; B07C7/02; Y; Y10; Y10S; Y10S209/00; Y10S209/918
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) | 1945-06-22 | 1945-12-22 | 1946-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-06-22 | 1949-12-22 | 1950-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-06-22 | 1953-12-22 | 1954-06-23 | $7700.00 | Window Closed / Lapsed |