Patent US2468646A successfully refreshed from Google Patents.
US2468646A
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Sash lock and method of making the same
Assignee: WEATHER SEAL Inc
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Filing: 1946-04-20
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Granted: 1949-04-26
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Expires: 1966-04-20
Abstract
No abstract record available.
Inventors
- 👤 Anthony H Verhoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:46
CPC Classifications
E; E05; E05C; E05C5/00; E05C5/02; E05C5/04; Y; Y10; Y10S; Y10S292/00; Y10S292/10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/4984; Y10T29/49845; Y10T29/49858; Y10T29/49908; Y10T29/49938; Y10T292/00; Y10T292/08; Y10T292/1039; Y10T292/1041; Y10T292/1099; Y10T403/00; Y10T403/59
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-25 | 1952-10-25 | 1953-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-25 | 1956-10-25 | 1957-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-25 | 1960-10-25 | 1961-04-26 | $7700.00 | Window Closed / Lapsed |