US2553637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door and operating mechanism therefor
Assignee: CONS WESTERN STEEL CORP
•
Filing: 1946-03-29
•
Granted: 1951-05-22
•
Expires: 1966-03-29
Abstract
No abstract record available.
Inventors
- 👤 Camp Ray E De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:43
CPC Classifications
B; B61; B61D; B61D19/00; B61D19/003; B61D19/009; E; E05; E05D; E05D15/00; E05D15/06; E05D15/10; E05D15/1005; E05D15/1007; E05Y; E05Y2900/00; E05Y2900/50; E05Y2900/51
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US712926A
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US755551A
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US778250A
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US1051762A
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US1086603A
Cited
US1441349A
Cited
US1787302A
Cited
US2083708A
Cited
US2108224A
Cited
US2141353A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |