Patent US2434880A successfully refreshed from Google Patents.
US2434880A
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US
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Cylinder surface character
Assignee: Individual
•
Filing: 1944-09-22
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Granted: 1948-01-20
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Expires: 1964-09-22
Abstract
No abstract record available.
Inventors
- 👤 Harry M Bramberry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:03
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/18; F02F1/20; F02B; F02B77/00; F02B77/02; F05; F05C; F05C2251/00; F05C2251/04; F05C2251/048; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/4927
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-19 | 1951-07-21 | 1952-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-19 | 1955-07-21 | 1956-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-19 | 1959-07-21 | 1960-01-20 | $7700.00 | Window Closed / Lapsed |