Patent US3702549A successfully refreshed from Google Patents.
US2593573A
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Door latch
Assignee: Sargent Manufacturing Co
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Filing: 1948-01-22
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Granted: 1952-04-22
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Expires: 1968-01-22
Abstract
No abstract record available.
Inventors
- 👤 Kulbersh Nathan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:46
CPC Classifications
E; E05; E05C; E05C1/00; E05C1/08; E05C1/12; E05C1/16; E05C1/163; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0977; Y10T292/0982; Y10T292/0983; Y10T292/0984; Y10T292/0986; Y10T292/1014; Y10T292/1022; Y10T292/1028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US939694A
Cited
US1233295A
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US2220591A
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US2230096A
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US2263477A
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US2423988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |