US2193487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manually controllable automatic clutch-operating mechanism
Assignee: Individual
•
Filing: 1934-01-17
•
Granted: 1940-03-12
•
Expires: 1954-01-17
Abstract
No abstract record available.
Inventors
- 👤 James H K Mccollum
- 👤 Henry J De N Mccollum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:14
CPC Classifications
F; F16; F16D; F16D48/00; F16D48/06; B; B60; B60W; B60W10/00; B60W10/02; B60W10/04; F16D2500/00; F16D2500/10; F16D2500/104; F16D2500/10406; F16D2500/10412; F16D2500/10443; F16D2500/10481; F16D2500/30; F16D2500/314; F16D2500/31406; F16D2500/31413; F16D2500/3144; F16D2500/31453; F16D2500/50; F16D2500/502; F16D2500/50239; F16D2500/504; F16D2500/5045; F16D2500/52; F16D2500/525; F16D2500/70; F16D2500/704; F16D2500/70402; F16D2500/7041; F16D2500/71; F16D2500/7105
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) | 1943-03-12 | 1943-09-11 | 1944-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-03-12 | 1947-09-11 | 1948-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-03-12 | 1951-09-11 | 1952-03-12 | $7700.00 | Window Closed / Lapsed |