US2428006A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window channel
Assignee: Individual
•
Filing: 1943-06-10
•
Granted: 1947-09-30
•
Expires: 1963-06-10
Abstract
No abstract record available.
Inventors
- 👤 Frank A Best
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:24
CPC Classifications
B; B60; B60J; B60J10/00; B60J10/70; B60J10/74; B60J10/15; B60J10/17; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1026; Y10T156/1043; Y10T156/1044; Y10T156/1046; Y10T156/1089; Y10T156/1092; Y10T156/1093; Y10T428/00; Y10T428/23907; Y10T428/23929; Y10T428/24; Y10T428/2419; Y10T428/24198; Y10T428/24628; Y10T428/24669
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-29 | 1951-03-31 | 1951-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-29 | 1955-03-31 | 1955-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-29 | 1959-03-31 | 1959-09-30 | $7700.00 | Window Closed / Lapsed |