Patent US2743488A successfully refreshed from Google Patents.
US2743488A
Expired / Lapsed
US
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Sealed door construction for dryers and the like
Assignee: Proctor and Schwartz Inc
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Filing: 1953-05-25
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Granted: 1956-05-01
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Expires: 1973-05-25
Abstract
No abstract record available.
Inventors
- 👤 John R Thygeson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:26
CPC Classifications
F; F26; F26B; F26B25/00; F26B25/06; F26B25/08; F26B25/12; E; E06; E06B; E06B7/00; E06B7/16; E06B7/22; E06B7/232
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US848961A
Cited
GB210295A
Cited
US1754439A
Cited
US1841868A
Cited
FR735493A
Cited
FR833651A
Cited
GB512986A
Cited
US2575793A
Cited
US2533847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |