Patent US3477341A successfully refreshed from Google Patents.
US3477341A
Expired / Lapsed
US
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Portable machine
Assignee: Babcock and Wilcox Co
•
Filing: 1967-05-25
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Granted: 1969-11-11
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Expires: 1987-05-25
Abstract
No abstract record available.
Inventors
- 👤 Gary H Rickenbrode
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:11
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/18; B23Q35/181; B23Q35/183; B23Q35/185; B23B; B23B3/00; B23B3/22; B23B3/26; B23Q9/00; B23Q9/0014; B23Q9/0021; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/303416; Y10T409/303696; Y10T409/306216; Y10T409/306384; Y10T409/30644
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CH53116A
Cited
GB691064A
Cited
GB747964A
Cited
US2827836A
Cited
US3067651A
Cited
US3145622A
Cited
US3175465A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |