US2438686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple motor
Assignee: Individual
•
Filing: 1945-06-22
•
Granted: 1948-03-30
•
Expires: 1965-06-22
Abstract
No abstract record available.
Inventors
- 👤 Stone Albert Rivington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:45
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/72; F16H3/721; F16H37/00; F16H2700/00; F16H2700/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1349924A
Cited
US1711967A
Cited
US1987698A
Cited
US2153997A
Cited
US2211406A
Cited
US2138208A
Cited
US2366398A
Cited
US2393918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-30 | 1951-09-29 | 1952-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-30 | 1955-09-29 | 1956-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-30 | 1959-09-29 | 1960-03-30 | $7700.00 | Window Closed / Lapsed |