Patent US2698457A successfully refreshed from Google Patents.
US2698457A
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Door supporting and operating mechanism
Assignee: GEORGE DALWIGK
•
Filing: 1951-10-12
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Granted: 1955-01-04
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Expires: 1971-10-12
Abstract
No abstract record available.
Inventors
- 👤 Cureton Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:25
CPC Classifications
E; E05; E05D; E05D15/00; E05D15/48; E05D15/50; E05D15/502; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132; E05Y2900/30; E05Y2900/31; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0834; Y10T292/0836; Y10T292/0838; Y10T292/1043; Y10T292/1044; Y10T292/1045; Y10T292/1047
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US707910A
Cited
US847145A
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US1256667A
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US1966251A
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US1654892A
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US1937778A
Cited
US2137002A
Cited
US2146379A
Cited
US2275128A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-03 | 1958-07-05 | 1959-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-03 | 1962-07-05 | 1963-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-03 | 1966-07-05 | 1967-01-04 | $7700.00 | Window Closed / Lapsed |