Patent US2484581A successfully refreshed from Google Patents.
US2484581A
Expired / Lapsed
US
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Hinge
Assignee: Individual
•
Filing: 1944-10-11
•
Granted: 1949-10-11
•
Expires: 1964-10-11
Abstract
No abstract record available.
Inventors
- 👤 Walter B Pallmen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:16
CPC Classifications
E; E05; E05D; E05D1/00; E05D1/06; E05D5/00; E05D5/10; E05D2005/102; E05D7/00; E05D7/009; E05D7/10; E05D7/1061; E05D7/1077; E05Y; E05Y2201/00; E05Y2201/40; E05Y2201/47; E05Y2600/00; E05Y2600/10; E05Y2600/13; Y; Y10; Y10S; Y10S16/00; Y10S16/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US11606A
Cited
US32482A
Cited
US473175A
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US611423A
Cited
US958740A
Cited
US1613665A
Cited
US2110740A
Cited
US2145143A
Cited
US2168598A
Cited
US2221411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |