Patent US3687119A successfully refreshed from Google Patents.
US1923903A
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Latching mechanism
Assignee: FRED MEDART Manufacturing Co
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Filing: 1931-05-14
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Granted: 1933-08-22
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Expires: 1951-05-14
Abstract
No abstract record available.
Inventors
- 👤 Albach Frank
- 👤 George R Chervenka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:23
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/02; E05B65/025; Y; Y10; Y10S; Y10S292/00; Y10S292/68; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0825; Y10T292/0826; Y10T292/0828; Y10T292/0848; Y10T292/0849; Y10T292/0853; Y10T292/0886; Y10T292/0887; Y10T292/089; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5097; Y10T70/5111; Y10T70/5115
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) | 1936-08-21 | 1937-02-20 | 1937-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-08-21 | 1941-02-20 | 1941-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-08-21 | 1945-02-20 | 1945-08-22 | $7700.00 | Window Closed / Lapsed |