US2033639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable speed transmission
Assignee: MAURICE I KAPLAN
•
Filing: 1933-07-03
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Granted: 1936-03-10
•
Expires: 1953-07-03
Abstract
No abstract record available.
Inventors
- 👤 Delbert L Lotts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:18
CPC Classifications
F; F16; F16H; F16H29/00; F16H29/02; F16H29/04; F16H29/06; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1508; Y10T74/151; Y10T74/1558; Y10T74/1587; Y10T74/21; Y10T74/211; Y10T74/2116
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) | 1939-03-10 | 1939-09-09 | 1940-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-03-10 | 1943-09-09 | 1944-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-03-10 | 1947-09-09 | 1948-03-10 | $7700.00 | Window Closed / Lapsed |