US1440974A
Expired / Lapsed
US
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Assignee: Individual
•
Filing: 1922-01-27
•
Granted: 1923-01-02
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Expires: 1942-01-27
Abstract
No abstract record available.
Inventors
- 👤 William H Dornburgh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:37
CPC Classifications
B; B60; B60C; B60C19/00; B60C19/12; Y; Y10; Y10T; Y10T152/00; Y10T152/10; Y10T152/10036; Y10T152/10045; Y10T152/10135; Y10T152/10171; Y10T152/1018; Y10T152/10189; Y10T152/10207; Y10T152/10234; Y10T152/10252; Y10T152/1027
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) | 1926-01-01 | 1926-07-03 | 1927-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-01-01 | 1930-07-03 | 1931-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-01-01 | 1934-07-03 | 1935-01-02 | $7700.00 | Window Closed / Lapsed |