Patent US2122151A successfully refreshed from Google Patents.
US2122151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallic window frame
Assignee: Individual
•
Filing: 1937-03-08
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Granted: 1938-06-28
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Expires: 1957-03-08
Abstract
No abstract record available.
Inventors
- 👤 Luethke John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:01
CPC Classifications
E; E05; E05F; E05F11/00; E05F11/02; E05F11/08; E05F11/12; E05F11/16; E06; E06B; E06B3/00; E06B3/32; E06B3/325; E06B7/00; E06B7/14; E06B3/50
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) | 1941-06-27 | 1941-12-27 | 1942-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-06-27 | 1945-12-27 | 1946-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-06-27 | 1949-12-27 | 1950-06-28 | $7700.00 | Window Closed / Lapsed |