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US2561295A
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Assignee: National Lock Co
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Filing: 1947-06-24
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Granted: 1951-07-17
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Expires: 1967-06-24
Abstract
No abstract record available.
Inventors
- 👤 Roy A Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:26
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/08; E05B65/0811; E05B65/0823; E05C; E05C3/00; E05C3/12; E05C3/124; E05C3/14; 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)
US1214035A
Cited
US1279353A
Cited
US1485382A
Cited
US1662422A
Cited
US1999194A
Cited
US2386732A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-16 | 1955-01-15 | 1955-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-16 | 1959-01-15 | 1959-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-16 | 1963-01-15 | 1963-07-17 | $7700.00 | Window Closed / Lapsed |