Patent US1609989A successfully refreshed from Google Patents.
US1609989A
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US
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Assignee: Individual
•
Filing: 1924-09-23
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Granted: 1926-12-07
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Expires: 1944-09-23
Abstract
No abstract record available.
Inventors
- 👤 Rowland N Chubb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:59
CPC Classifications
G; G09; G09F; G09F9/00; G09F9/30; G09F9/37
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) | 1929-12-06 | 1930-06-07 | 1930-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-12-06 | 1934-06-07 | 1934-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-12-06 | 1938-06-07 | 1938-12-07 | $7700.00 | Window Closed / Lapsed |