Patent US3368358A successfully refreshed from Google Patents.
Patent US2878532A successfully refreshed from Google Patents.
US2878532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sliding and sealing door for cold storage and the like
Assignee: Individual
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Filing: 1955-11-07
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Granted: 1959-03-24
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Expires: 1975-11-07
Abstract
No abstract record available.
Inventors
- 👤 Henry B Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:27
CPC Classifications
F; F25; F25D; F25D23/00; F25D23/02; F25D23/021; E; E05; E05D; E05D15/00; E05D15/06; E05D15/10; E05D15/1021; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/632; E05F15/643; E05F15/646; E05F17/00; E05F17/004; E05D15/1042; E05D2015/1055; E05Y; E05Y2800/00; E05Y2800/10; E05Y2800/104; E05Y2800/12; E05Y2800/26; E05Y2800/27; E05Y2900/00; E05Y2900/10; E05Y2900/102; E05Y2900/30; E05Y2900/31; F25D13/00
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) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |