US2570698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1946-08-12
•
Granted: 1951-10-09
•
Expires: 1966-08-12
Abstract
No abstract record available.
Inventors
- 👤 David O Manseau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:24
CPC Classifications
F; F04; F04B; F04B23/00; F04B23/04; F04B23/06; F04B1/00; F04B1/12; F04B1/122; F04B1/124; F04B1/126; F04B1/14; F04B1/141; F04B1/145; F04B1/146; F04B1/18; F04B49/00; F04B49/18
Claims Analysis
Total Claims: 0
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US2070879A
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US2093477A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-08 | 1955-04-09 | 1955-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-08 | 1959-04-09 | 1959-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-08 | 1963-04-09 | 1963-10-09 | $7700.00 | Window Closed / Lapsed |