Patent US1379267A successfully refreshed from Google Patents.
US1379267A
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Reproducing-machine for making aeroplane-propellers and the like
Assignee: Individual
•
Filing: 1918-01-11
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Granted: 1921-05-24
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Expires: 1938-01-11
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:30
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/08; B23Q35/10; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/301624; Y10T409/30168; Y10T409/302352; Y10T409/302968; Y10T409/303136
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1924-05-23 | 1924-11-22 | 1925-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-05-23 | 1928-11-22 | 1929-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-05-23 | 1932-11-22 | 1933-05-24 | $7700.00 | Window Closed / Lapsed |