US2847766A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drier
Assignee: Silver Engineering Works Inc
•
Filing: 1954-11-05
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Granted: 1958-08-19
•
Expires: 1974-11-05
Abstract
No abstract record available.
Inventors
- 👤 Harold F Silver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:09
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/10; F; F26; F26B; F26B17/00; F26B17/10; F26B17/101; F26B17/104; B01J2219/00; B01J2219/19; B01J2219/194; B01J2219/1941; B01J2219/1946
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2513370A
Cited
US2607537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |