Patent US805236A successfully refreshed from Google Patents.
US805236A
Expired / Lapsed
US
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Door-operating device for drying-machines.
Assignee: PHILADELPHIA TEXTILE MACHINERY Co
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Filing: 1903-08-31
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Granted: 1905-11-21
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Expires: 1923-08-31
Abstract
No abstract record available.
Inventors
- 👤 Walter M Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:02
CPC Classifications
F; F27; F27B; F27B9/00; F27B9/14; F27B9/20; F27B9/24; F27B9/243; F27D; F27D3/00; F27D3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1908-11-20 | 1909-05-22 | 1909-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1912-11-20 | 1913-05-22 | 1913-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1916-11-20 | 1917-05-22 | 1917-11-21 | $7700.00 | Window Closed / Lapsed |