US2850900A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Bastian Blessing Co
•
Filing: 1957-08-20
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Granted: 1958-09-09
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Expires: 1977-08-20
Abstract
No abstract record available.
Inventors
- 👤 Evans R Billington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:34
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/02; F17C13/025; F17C13/04; F17C13/045; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/03; F17C2223/033; F17C2250/00; F17C2250/04; F17C2250/0404; F17C2250/043; F17C2250/0434
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1644193A
Cited
US1610452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |