Patent US708946A successfully refreshed from Google Patents.
US708946A
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US
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Method of heating materials for the purpose of drying or treating.
Assignee: Individual
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Filing: 1901-06-07
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Granted: 1902-09-09
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Expires: 1921-06-07
Abstract
No abstract record available.
Inventors
- 👤 Abraham T Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:06
CPC Classifications
F; F26; F26B; F26B11/00; F26B11/02; F26B11/04; F26B11/0463; F26B11/0477; F26B11/0486; D; D06; D06F; D06F58/00; D06F58/30; F26B23/00; F26B23/02
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) | 1905-09-08 | 1906-03-10 | 1906-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1909-09-08 | 1910-03-10 | 1910-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1913-09-08 | 1914-03-10 | 1914-09-09 | $7700.00 | Window Closed / Lapsed |