Patent EP0404684A1 successfully refreshed from Google Patents.
US2493980A
Expired / Lapsed
US
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Handle retaining structure for doors
Assignee: Heintz Manufacturing Co
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Filing: 1946-12-04
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Granted: 1950-01-10
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Expires: 1966-12-04
Abstract
No abstract record available.
Inventors
- 👤 Francis M Lambert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:08
CPC Classifications
E; E05; E05C; E05C9/00; E05C9/06; E05C9/063; E05C9/10; E05C9/16; E05B; E05B63/00; E05B63/0052; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0848; Y10T292/0849; Y10T292/0853
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1105963A
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US1237602A
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US1257522A
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US2179495A
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US2315239A
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US2355025A
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US2378119A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |