US2932963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Key
Assignee: Individual
•
Filing: 1957-06-12
•
Granted: 1960-04-19
•
Expires: 1977-06-12
Abstract
No abstract record available.
Inventors
- 👤 Walker Brooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:53
CPC Classifications
E; E05; E05B; E05B19/00; E05B19/04; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/778; Y10T70/7791; Y10T70/7842; Y10T70/7859; Y10T70/7864; Y10T70/7876
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US25923A
Cited
DE516419C
Cited
US756830A
Cited
US967066A
Cited
US1060241A
Cited
US1103701A
Cited
US1506837A
Cited
FR35230E
Cited
US2207673A
Cited
US2474532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |