US2439494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lid and tray supporting hinge
Assignee: National Lock Co
•
Filing: 1944-03-17
•
Granted: 1948-04-13
•
Expires: 1964-03-17
Abstract
No abstract record available.
Inventors
- 👤 Roy A Stone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:06
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/32; E06B3/34; E06B3/38; E06B3/385
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1077199A
Cited
US907342A
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US1838898A
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US2124071A
Cited
US2154733A
Cited
US2162135A
Cited
US2258838A
Cited
US2276419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-13 | 1951-10-13 | 1952-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-13 | 1955-10-13 | 1956-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-13 | 1959-10-13 | 1960-04-13 | $7700.00 | Window Closed / Lapsed |