Patent US2812924A successfully refreshed from Google Patents.
US2812924A
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Conveying drying apparatus
Assignee: HANNAH JANE HAPMAN
•
Filing: 1952-05-19
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Granted: 1957-11-12
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Expires: 1972-05-19
Abstract
No abstract record available.
Inventors
- 👤 Melvin S Huffaker
- 👤 Hapman Hannah Jane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:28
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/02; F26B17/023; F26B25/00; F26B25/008; Y; Y10; Y10S; Y10S165/00; Y10S165/135; Y10S165/136
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-11 | 1961-05-13 | 1961-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-11 | 1965-05-13 | 1965-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-11 | 1969-05-13 | 1969-11-12 | $7700.00 | Window Closed / Lapsed |