US2039638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air inflater mechanism
Assignee: Individual
•
Filing: 1935-01-16
•
Granted: 1936-05-05
•
Expires: 1955-01-16
Abstract
No abstract record available.
Inventors
- 👤 Daniel O Druge
- 👤 Otto C Druge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:20
CPC Classifications
B; B60; B60S; B60S5/00; B60S5/04; B60S5/043; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7613; Y10T137/8158; Y10T137/8326; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/87169; Y10T137/87233; Y10T137/87241; Y10T137/877; Y10T137/87708; Y10T137/8778
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) | 1939-05-05 | 1939-11-04 | 1940-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-05-05 | 1943-11-04 | 1944-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-05-05 | 1947-11-04 | 1948-05-05 | $7700.00 | Window Closed / Lapsed |