Patent US3227113A successfully refreshed from Google Patents.
US3227113A
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US
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Locking mechanism
Assignee: Chicago Hardware Foundry Co
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Filing: 1963-12-19
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Granted: 1966-01-04
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Expires: 1983-12-19
Abstract
No abstract record available.
Inventors
- 👤 Kupski Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:42
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/20; A47C3/28; A47C3/285; F; F16; F16B; F16B7/00; F16B7/10; F16B7/14; F16B7/1463
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2490369A
Cited
US2542967A
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US2508039A
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US2567593A
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US2695800A
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US2649345A
Cited
US3098669A
Cited
US3117392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |