Patent US4148026A successfully refreshed from Google Patents.
Patent US2377427A successfully refreshed from Google Patents.
US2377427A
Expired / Lapsed
US
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Sash construction
Assignee: Adlake Co
•
Filing: 1942-12-31
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Granted: 1945-06-05
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Expires: 1962-12-31
Abstract
No abstract record available.
Inventors
- 👤 Ward P Kessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:37
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/96; Y; Y10; Y10T; Y10T403/00; Y10T403/46
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) | 1948-06-04 | 1948-12-04 | 1949-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-06-04 | 1952-12-04 | 1953-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-06-04 | 1956-12-04 | 1957-06-05 | $7700.00 | Window Closed / Lapsed |