Patent US3531824A successfully refreshed from Google Patents.
US3531824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination door hinge and stop
Assignee: General Electric Co
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Filing: 1968-08-29
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Granted: 1970-10-06
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Expires: 1988-08-29
Abstract
No abstract record available.
Inventors
- 👤 Willem J Hagendoorn
- 👤 Samuel J Woolley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:13
CPC Classifications
E; E05; E05D; E05D11/00; E05D11/06; E05D7/00; E05D7/08; E05D7/081; E05D5/00; E05D5/02; E05D5/06; E05Y; E05Y2900/00; E05Y2900/30; E05Y2900/31; F; F25; F25D; F25D2323/00; F25D2323/02; F25D2323/024
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) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |