US1386489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor mechanism
Assignee: Individual
•
Filing: 1917-05-31
•
Granted: 1921-08-02
•
Expires: 1937-05-31
Abstract
No abstract record available.
Inventors
- 👤 Birkigt Marc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:48
CPC Classifications
F; F02; F02B; F02B73/00; Y; Y10; Y10S; Y10S123/00; Y10S123/08; Y10T; Y10T74/00; Y10T74/19; Y10T74/19023; Y10T74/19051; Y10T74/19065
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) | 1924-08-01 | 1925-01-31 | 1925-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-08-01 | 1929-01-31 | 1929-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-08-01 | 1933-01-31 | 1933-08-02 | $7700.00 | Window Closed / Lapsed |