Patent US2607410A successfully refreshed from Google Patents.
US2607410A
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Counterbalancing means
Assignee: MCKEE DOOR Co
•
Filing: 1949-01-12
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Granted: 1952-08-19
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Expires: 1969-01-12
Abstract
No abstract record available.
Inventors
- 👤 James H Mckee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:21
CPC Classifications
E; E05; E05D; E05D13/00; E05D13/10; E05D13/12; E05D13/1253; E05D13/1261; E05D13/1207; E05D13/1215; E05D15/00; E05D15/16; E05D15/24; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US310386A
Cited
US1469542A
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US1721501A
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US1876798A
Cited
US2090146A
Cited
US2473628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |