US2825430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper machine hood
Assignee: ROSS ENGINEERING OF CANADA Ltd
•
Filing: 1953-07-13
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Granted: 1958-03-04
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Expires: 1973-07-13
Abstract
No abstract record available.
Inventors
- 👤 Hooper Frederick William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:57
CPC Classifications
D; D21; D21G; D21G9/00; F; F26; F26B; F26B25/00; F26B25/06; F26B25/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US757179A
Cited
US1283836A
Cited
US1199012A
Cited
US1229478A
Cited
US1970222A
Cited
US2184774A
Cited
US2466913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-03 | 1961-09-02 | 1962-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-03 | 1965-09-02 | 1966-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-03 | 1969-09-02 | 1970-03-04 | $7700.00 | Window Closed / Lapsed |