US2564264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Window
Assignee: WISCO Inc
•
Filing: 1947-02-12
•
Granted: 1951-08-14
•
Expires: 1967-02-12
Abstract
No abstract record available.
Inventors
- 👤 Knott Frank William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:41
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/50; E06B3/5054; E06B3/5063; E06B3/34; E06B3/42; E06B3/44; E06B3/96; E06B3/964; E06B3/968; E06B3/9684; E06B2003/4492
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) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |