US2087688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor attachment
Assignee: Individual
•
Filing: 1934-02-08
•
Granted: 1937-07-20
•
Expires: 1954-02-08
Abstract
No abstract record available.
Inventors
- 👤 Johnnie L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:50
CPC Classifications
F; F01; F01N; F01N3/00; F01N3/02; F01N3/021; F01N3/022; F01N3/0226; F01N2330/00; F01N2330/10; F01N2450/00; F01N2450/30; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
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) | 1940-07-19 | 1941-01-18 | 1941-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-07-19 | 1945-01-18 | 1945-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-07-19 | 1949-01-18 | 1949-07-20 | $7700.00 | Window Closed / Lapsed |