US2987175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drier
Assignee: Individual
•
Filing: 1957-09-03
•
Granted: 1961-06-06
•
Expires: 1977-09-03
Abstract
No abstract record available.
Inventors
- 👤 Edward W Bottum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:46
CPC Classifications
F; F25; F25B; F25B43/00; F25B43/003; Y; Y10; Y10S; Y10S210/00; Y10S210/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1430169A
Cited
US2202742A
Cited
US2723790A
Cited
US2690946A
Cited
US2770383A
Cited
US2789654A
Cited
US2862528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |