US2435180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch
Assignee: Yale and Towne Manufacturing Co
•
Filing: 1944-04-25
•
Granted: 1948-01-27
•
Expires: 1964-04-25
Abstract
No abstract record available.
Inventors
- 👤 Ledin Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:51
CPC Classifications
E; E05; E05C; E05C3/00; E05C3/12; E05C3/16; E05C3/162; E05C3/124; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1051; Y10T292/1052; Y10T292/1061
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US975037A
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US1013104A
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US1607263A
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US1840037A
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US2054907A
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US2087143A
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US2232965A
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US2311688A
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US2308284A
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US2317300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-26 | 1951-07-28 | 1952-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-26 | 1955-07-28 | 1956-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-26 | 1959-07-28 | 1960-01-27 | $7700.00 | Window Closed / Lapsed |