Patent US2432528A successfully refreshed from Google Patents.
US2432528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Guy derrick
Assignee: Individual
•
Filing: 1944-08-09
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Granted: 1947-12-16
•
Expires: 1964-08-09
Abstract
No abstract record available.
Inventors
- 👤 Raymond O Lively
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:51
CPC Classifications
B; B66; B66C; B66C23/00; B66C23/18; B66C23/20; B66C23/202; B66C23/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US927680A
Cited
US984670A
Cited
US1044771A
Cited
US1076992A
Cited
US1083277A
Cited
US1345304A
Cited
US1956094A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-15 | 1951-06-16 | 1951-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-15 | 1955-06-16 | 1955-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-15 | 1959-06-16 | 1959-12-16 | $7700.00 | Window Closed / Lapsed |