US2847240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Snap-in catch
Assignee: National Lock Co
•
Filing: 1954-08-12
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Granted: 1958-08-12
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Expires: 1974-08-12
Abstract
No abstract record available.
Inventors
- 👤 Roy A Stone
- 👤 Leonard K Ploughman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:27
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/06; E05C19/063; E05C19/066; Y; Y10; Y10S; Y10S285/00; Y10S285/919; Y10S285/921; Y10S292/00; Y10S292/38; Y10T; Y10T292/00; Y10T292/08; Y10T292/0876
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |