Patent US1703308A successfully refreshed from Google Patents.
US1703308A
Expired / Lapsed
US
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Airplane powder-dusting apparatus
Assignee: Individual
•
Filing: 1926-01-09
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Granted: 1929-02-26
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Expires: 1946-01-09
Abstract
No abstract record available.
Inventors
- 👤 Johnson Elmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:25
CPC Classifications
B; B64; B64D; B64D1/00; B64D1/16; Y; Y10; Y10S; Y10S111/00; Y10S111/92
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) | 1932-02-26 | 1932-08-27 | 1933-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-02-26 | 1936-08-27 | 1937-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-02-26 | 1940-08-27 | 1941-02-26 | $7700.00 | Window Closed / Lapsed |