US1642473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drying machine
Assignee: PHILADELPHIA DRYING MACHINERY
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Filing: 1924-04-18
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Granted: 1927-09-13
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Expires: 1944-04-18
Abstract
No abstract record available.
Inventors
- 👤 Harry H Wigglesworth
- 👤 William P Greiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:51
CPC Classifications
D; D06; D06C; D06C5/00; D06C5/005; F; F26; F26B; F26B15/00; F26B15/02; F26B15/04; F26B23/00; F26B23/10; F26B3/00; F26B3/02; F26B3/04; D06F; D06F59/00; D06F59/02; D06F59/06
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) | 1930-09-12 | 1931-03-14 | 1931-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-09-12 | 1935-03-14 | 1935-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-09-12 | 1939-03-14 | 1939-09-13 | $7700.00 | Window Closed / Lapsed |