Patent US2976072A successfully refreshed from Google Patents.
US2976072A
Expired / Lapsed
US
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Lock assembly
Assignee: Independent Lock Co
•
Filing: 1957-07-23
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Granted: 1961-03-21
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Expires: 1977-07-23
Abstract
No abstract record available.
Inventors
- 👤 Muttart Vincent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:29
CPC Classifications
E; E05; E05B; E05B55/00; E05B55/005; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0974; Y10T292/57; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/5394; Y10T70/542; Y10T70/5442; Y10T70/5447
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1735914A
Cited
US1843143A
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US1944470A
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US2147581A
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US2266106A
Cited
US2423206A
Cited
US2536494A
Cited
US2844953A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |